(i) Sketch the graph of .
(ii) Explain why for all real values of
.
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(i) Sketch the graph of .
(ii) Explain why for all real values of
.
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The point lies on the curve with equation
Find the point to which is mapped, when the curve with equation
is transformed to the curve with equation
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State whether the following mappings are one-to-one, many-to-one, one-to-many or many-to-many.
(i)
(ii)
(iii)
(iv)
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State the largest possible domains for the following functions.
(i)
(ii)
(iii)
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State the range for the following functions based on the given domains.
(i)
(ii)
(iii)
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The function f(x) is defined as
Sketch the graph of y = f(x), giving the coordinates of any points where the graph intersects the coordinate axes.
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The minimum point on the graph of y = f(x) has x -coordinate 4. Find the range of f(x) .
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The function f(x) is defined as
(i) Work out the range of f(x).
(ii) If the domain of f(x) is changed to what would be the new range of f(x)?
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The functions f(x) and g(x) are defined as follows
Find
(i) fg(x)
(ii) gf(x)
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Solve the equation f(x) = g(x) .
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The function f(x) is defined by
Find the inverse of f(x) , f−1(x).
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Find the domain and range for f-−1(x).
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Solve the equation .
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On the same diagram, sketch the graphs of and
.
Label the coordinates of the points where the two graphs intersect each other and the coordinate axes.
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Consider the graphs of and
, where k is a constant.
For which values of k...
(i) ... will the two graphs have no points of intersection?
(ii) ... will the two graphs have one point of intersection?
(iii) ... will the two graphs have two points of intersection?
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In this question you must show all stages of your working.
Solutions relying entirely on calculator technology are not acceptable.
Figure 1 shows a sketch of the graph with equation
Solve
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Find .
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State the range of .
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Find , stating its domain.
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The functions and
are defined by
State the range of
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Find
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Find
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The function is defined by
Find .
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Show that where
and
are integers to be found.
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Write in the form
, where
and
are integers to be found.
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Sketch the curve with equation showing any points of intersection with the coordinate axes and the coordinates of any turning point.
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Find the range of the function
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State whether the following mappings are one-to-one, many-to-one, one-to-many or many-to-many.
(i)
(ii)
(iii)
(iv)
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The function f(x) is defined as
Sketch the graph of y = f(x) , giving the coordinates of any points where the graph intercepts the coordinate axes and the coordinates of the turning point.
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Write down the range of f(x) .
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The function f(x) is defined as
Work out the range of f(x) .
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If the domain of f(x) is changed to what is the range of f(x)?
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The functions f(x) and g(x) are defined as follows
Write down the range of f(x) .
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Find
(i)
(ii)
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Solve the equation f(x) = g(x).
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The graph of y = f(x) is shown below.
(i) Use the graph to write down the domain and range of f(x).
(ii) Given that the point (1, 1) lies on the dotted line, write down the equation of the line.
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On the diagram above sketch the graph of y = f −1(x).
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On the same axes, sketch the graphs of y = f(x) and where
Label the points at which the graphs intersect the coordinate axes.
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Solve the equation .
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The function f(x) is defined as
Show that f(x) can be written in the form
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Explain why the inverse of f(x) does not exist and suggest an adaption to its domain so the inverse does exist.
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The domain of f(x) is changed to x > 0.
Find an expression for f−1(x) and state its domain and range.
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Solve the equation .
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The functions f(x) and g(x) are defined as follows
Find
(i)
(ii)
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Write down f−1(x) and state its domain and range.
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The functions f(x), g(x) are defined as follows
Sketch the graph of y = fg(x) , stating the coordinates of all points where the graph intercepts the coordinate axes.
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How many solutions are there to the equation fg(x) = 5 ?
How many solutions are there to the equation fg(x) = 9 ?
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Write down the solutions to the equation fg(x) = 0.
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Figure 4 shows a sketch of the graph of , where
Find the value of .
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Find all the values of for which
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The function is defined by
Explain why has an inverse but
does not.
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Solve
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The function is defined by
Find
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Show that
where and
are constants to be found.
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The function is defined by
State the range of
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Find the range of
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Figure 2 shows a sketch of the graph with equation
The vertex of the graph is at the point , shown in Figure 2.
Find the coordinates of .
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Solve the equation
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A line has equation
, where
is a constant.
Given that intersects
at least once,
find the range of possible values of , writing your answer in set notation.
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Figure 4 shows a sketch of the graph with equation
where is a positive constant.
Sketch the graph with equation where
stating
the coordinates of the maximum point
the coordinates of any points where the graph cuts the coordinate axes
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Find, in terms of , the set of values of
for which
giving your answer in set notation.
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State whether the following mappings are one-to-one, many-to-one, one-to-many or many-to-many.
(i)
(ii)
(iii)
(iv)
How did you do?
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It is given
Write down the domain of the function f(x)
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Sketch the graph of y = f(x), stating the coordinates of any intersections with the coordinate axes and the equations of any asymptotes.
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Write down the range of f(x).
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The function f(x) is defined as
Work out the range of f(x) .
How did you do?
If the domain of f(x) is changed to , what is the range of f(x)?
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The functions f(x) and g(x) are defined as follows
Write down the range of f(x).
How did you do?
Find
(i) fg(x)
(ii) gf(x)
How did you do?
Solve the equation f(x) = g(x) + 1
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The graph of y = f(x) is shown below.
(i) Use the graph to write down the domain and range of f(x) .
(ii) Write down the equation of the dotted line on the graph.
How did you do?
On the diagram above sketch the graph of y = f−1(x) .
How did you do?
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On the same axes, sketch the graphs of and
where
Label the points at which the graphs intersect the coordinate axes.
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Solve the equation .
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Which of the solutions to is also a solution to
?
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The functions f(x) and g(x) are defined as follows
Find
(i)
(ii)
How did you do?
Write down f−1(x) and state its domain and range.
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The graphs of f(x) and f−1(x) are drawn on the same axes. Describe the transformation that would map one graph onto the other.
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The functions f(x), g(x) are defined as follows
Sketch the graph of y = gf(x), stating the coordinates of all points where the graph intercepts the coordinate axes.
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(i) How many solutions are there to the equation gf(x) = 1?
(ii) How many solutions are there to the equation gf(x) = 10?
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Solve the equation gf(x) = 2.
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Solve the equation , giving your answers in exact form.
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The function is defined by
State the range of
How did you do?
Find
How did you do?
The function is defined by
Find
How did you do?
Find the exact value of the constant for which
How did you do?
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State whether the following mappings are one-to-one, many-to-one, one-to-many or many-to-many.
(i)
(ii)
(iii)
(iv)
How did you do?
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It is given
Write down the domain and range of the function f(x).
How did you do?
Sketch the graph of y = f(x), stating the coordinates of any intersections with the coordinate axes. (You do not need to give the coordinates of any turning points.)
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The function f(x) is defined as
Work out the range of f(x).
How did you do?
If the domain of f(x) is changed to , what is the range of f(x)?
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State another domain for f(x) that would have the same effect as that in part (b).
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The functions f(x) and g(x) are defined as follows
Write down the range of f(x).
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Leaving your answers as single fractions, find
(i) fg(x)
(ii) gf(x)
How did you do?
Solve the equation f(x) = g(x)
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The graphs of y = f(x) and y = x (dotted line) are shown in the diagram below.
has rotational symmetry about the origin and for
,there is a vertical line line of symmetry at
.
(i) Use the graph to write down the domain and range of .
(ii) On the diagram above sketch the reflection of in the line
and explain why this cannot be the graph of
.
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(i) Given that the maximum solution to . is
state the restriction on the domain of
such that
exists.
(ii) Hence, or otherwise, write down the domain and range of .
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On the same axes, sketch the graphs of y = f(x) and where
Label the points at which the graphs intersect the coordinate axes.
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Solve the equation
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Which of the solutions to is not a solution to f(x) = g(x) ?
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The function f(x) is defined as
Explain why the inverse of f(x) does not exist.
How did you do?
Suggest an adaption to the domain of f(x) so the following conditions are met:
the inverse of f(x) exists,
the graph of y = f(x) lies in the first quadrant only, and,
the domain of f(x) is as large as possible.
State the range for your adapted f(x).
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The domain of f(x) is changed to .
Find an expression for and state its domain and range.
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The functions f(x) and g(x) are defined as follows
Find
(i) fg(x)
(ii) gf(x)
How did you do?
Write down and state its domain and range.
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The graphs of f(x) and are drawn on the same axes. Describe the transformation that would map one graph onto the other.
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Find the coordinates of the point where the graphs of y = f(x) and meet.
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The graph of the function is shown below, where
. The graph has a local maximum at the point A(3, 5) and intersects the
-axis at (0,-7).
Find the values of and
Hence solve
.
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Find the solutions to the equation .
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The functions f(x), g(x) are defined as follows
Sketch the graph of y = fg(x), stating the coordinates of all points where the graph intercepts the coordinate axes.
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There are between 0 and 4 solutions to the equation fg(x) = c , where c is a real number.
Determine the values of c that produce each number of solutions.
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Solve the equation , giving your answers in exact form.
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