Free Printable Functions

1.

What is f(6) for the function f(x)=3x-8

a)

-8

b)

10

c)

-144

d)

answer not here

2.

$f\left(x\right)=5x-12$ What is $f\left(-4\right)$

a)

-32

b)

-3

c)

-12

d)

3

3.

$Given\ f\left(x\right)=\frac{1}{3}\left(x+6\right)\ what\ is\ f\left(-6\right)?$

a)

$\frac{2}{3}$

b)

$-8$

c)

$-6$

d)

0

4.

$Given\ f\left(x\right)=\frac{3}{2}x+5\ what\ is\ f\left(12\right)?$

a)

$\frac{43}{2}$

b)

$20$

c)

$23$

d)

$5$

5.

$Given\ g\left(x\right)=20x-189\ what\ is\ g\left(\frac{1}{2}\right)?$

a)

-189

b)

-179

c)

200

d)

answer not here

6.

$Evaluate\ the\ function\ for\ f\left(-9\right)\ if\ f\left(x\right)=\frac{3}{5}x+8$

a)

$\frac{67}{5}$

b)

$-\frac{13}{5}$

c)

$-\frac{67}{5}$

d)

$\frac{13}{5}$

7.

$Given\ h\left(x\right)=x^2-4\ what\ is\ h\left(6\right)?$

a)

32

b)

0

c)

-4

d)

77

8.

$Given\ h\left(x\right)=3x^2-2x+8\ what\ is\ h\left(0\right)?$

a)

13

b)

8

c)

16

d)

answer not here

9.

$Given\ h\left(x\right)=3x^2-2x+8\ what\ is\ h\left(-1\right)?$

a)

13

b)

8

c)

16

d)

answer not here

10.

$Given\ f\left(x\right)=2x-10\ for\ which\ value\ of\ x\ that\ f\left(x\right)=-10?$

a)

-1

b)

0

c)

2

d)

3

11.

$Given\ f\left(x\right)=2x-10\ for\ which\ value\ of\ x\ that\ f\left(x\right)=-12?$

a)

-1

b)

0

c)

2

d)

3

12.

$Given\ p\left(x\right)=5x-6\ what\ is\ the\ value\ of\ p\left(\frac{2}{5}\right)?$

a)

0

b)

25

c)

-6

d)

-4

13.

Given f(x) = 3x + 10
and g(x) = x - 2
Find f(g(5))

a)

19

b)

23

c)

-10

d)

None of these.

14.

f(x) = 3x + 10
g(x) = x - 2
Find g(f(-10))

a)

-42

b)

-26

c)

-18

d)

None of these.

15.

What is f(g(3))?

a)

1/8

b)

8

c)

1/4

d)

1/2

16.

Given that f(x) = x² + x and g(x) = 3x + 1, find the value of g(f(-2)).

a)

-14

b)

20

c)

6

d)

7

17.

Given that f(x) = x² + x and g(x) = 3x + 1, find the value of f(g(4)).

a)

182

b)

40

c)

61

d)

None of the Above

18.

f(n)=2n+1
g(n)=3n
Find f(n)+g(n)

a)

5n+1

b)

-5n+1

c)

-2n+1

d)

-6n-1

19.

Which expression represents g(f(x)) if f(x) = 2x - 8
and
g(x) = 4x

a)

8x - 32

b)

8x² - 32x

c)

8x - 8

d)

6x - 8

20.

Find the inverse of f(x) = -4x - 12

a)

f^-1(x) = 4x - 3

b)

f^-1(x) = -1/4x - 3

c)

f^-1(x) = 1/4x + 3

d)

f^-1(x) = -4x - 3

21.

Find the inverse of
f(x) = 1/4x - 7

a)

f^-1(x) = 4x + 7

b)

f^-1(x) = -4x + 28

c)

f^-1(x) = -4x - 7

d)

f^-1(x) = 4x + 28

22.

What does it mean to find the inverse of a function?

a)

the x's and y's are switched

b)

the x's and y's are divided by 2

c)

the x's and y's are made negative

d)

the x's and y's are the same

23.

a)

Inverse Functions

b)

Not Inverse Functions

24.

What does an inverse function do?

a)

Nothing

b)

Makes it bigger

c)

Does the opposite of the original function

25.

f(x) = 4x + 1 and g(x) = 4x - 3
Find f(x) * g(x)

a)

16x² + 8x - 3

b)

16x² - 8x + 3

c)

16x² - 8x - 3

d)

16x² - 16x - 3

Functions

Total questions: 25

Worksheet time: 49mins

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