Free Printable Operations With Functions

1.

Given
f(x) = 3x² + 7x and g(x) = 2x² - x - 1, find (f + g)(x).

a)

11x² - 1

b)

5x⁴ + 6x² - 1

c)

5x² + 6x - 1

d)

5x² + 8x - 1

2.

Given g(x) = -2x+2 and f(x) = 3x²+4, find (g+f)(-3).

a)

39

b)

-27

c)

-23

d)

-19

3.

Evaluate f(-2) if f(x) = x+3

a)

-1

b)

1

c)

5

d)

-5

4.

(f - g)(x)

a)

5x² + 3x

b)

-3x² - 13x

c)

3x² + 3x

d)

-3x² + 3x

5.

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

6.

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

a)

5n+1

b)

-5n+1

c)

-2n+1

d)

-6n-1

7.

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

a)

6x + 15

b)

6x - 15

c)

-6x + 15

d)

6x - 8

8.

$h(x)=-8x+7$ $c(x)=2x-8$
Find h(x) - c(x)

a)

$-10x+15$

b)

$-6x-1$

c)

$-6x+1$

d)

$-10x-1$

9.

Fill in the blank:
$\left(f\cdot g\right)\left(-2\right)=$

(a)

10.

Evaluate:
$\left(\frac{f}{g}\right)\left(2\right)=$

(a)

Operations With Functions

Total questions: 10

Worksheet time: 20mins

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