and are functions such that
Find
Find
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and are functions such that
Find
Find
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Express the inverse function in the form
Find
Simplify your answer.
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f is a function such that
Find
is a function such that
Find
Give your answer as simply as possible.
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is the function
Find
Express the inverse function in the form =
is the function
Find
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The functions and are defined as
Work out
Work out
Work out the value of .
Express the inverse function in the form = ...
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f is the function such that f(x) = 2x - 5
g is the function such that g(x) = x2 - 10
Find f (4)
Find fg(-4)
Express the inverse function f-1 in the form f-1 (x) = ...
Solve gf (x) = -1
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The functions and are such that
Find the value of
Find
Show that
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and
Circle the expression for
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Circle the value of
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Circle the expression for
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A function is represented by the following function machine.
A number is input into the machine.
The output is used as a new input.
The second output is 11.
Work out the number that was the first input.
A number is input into the machine.
The output given is the same number.
Work out the number.
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Express in the form
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The function is such that
Find
The function is such that
where is a constant.
Given that
work out the value of
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The functions and are such that
Find
Given that ,
show that
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and
Show that
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for all values of .
for all values of .
Work out .
Give your answer in the form where and are integers.
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Work out the values of and .
.........................
.........................
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for all values of
Jenny says,
“f(10) must equal 2 × f(5), because 10 is 2 × 5”
Is Jenny correct?
Show working to support your answer.
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Solve
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Work out
Give your answer in the form where and are integers.
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Work out
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Solve
= ....................
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A function machine is shown below.
If the Input is 3, the Output is 5.
If the Input is 7, the Output is 25.
Use this information to fill in the two boxes.
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Show that can be written as
State the value of .
Find the inverse function in the form
Show your working clearly.
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The functions and are such that
where and are constants.
Find the value of and the value of .
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The functions and are such that and
Find
Give your answer as a single algebraic fraction expressed as simply as possible.
Express the inverse function in the form
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Solve
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Work out the value of
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and
Simplify
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for all values of
On the grid, draw the graph of the inverse function for
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For all values of
On the grid, draw the graph of the composite function for
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and are constants.
Work out the value of .
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Here are two function machines, A and B.
Both machines have the same input.
Work out the range of input values for which
the output of A is less than the output of B.
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