Operations of Functions

f(x)=x² - 5x

Evaluate f(4).

• -4

• 126

• 24

• 84

Tags

CCSS.HSF.IF.A.2

Evaluate f(t)= -2t²+1 for f(-3).

• 19

• 37

• -17

• -11

Tags

CCSS.HSF.IF.A.2

f(x) = 5x + 3 and g(x)=3x-8

Find g(f(4)).

• 23

• 20

• 61

• 8x -5

Tags

CCSS.HSF-BF.A.1C

f(n)=n²+4n

g(n)= -n - 5

Find f(n)+g(n)

• n²+3n - 5

• -n³+2n - 7

• n³+3n - 3n

• n² - 3n - 5

Tags

CCSS.HSF-BF.A.1B

Given

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

• 11x² - 1

• 5x⁴ + 6x² - 1

• 5x² + 6x - 1

• 5x² + 8x - 1

Tags

CCSS.HSF-BF.A.1B

f(x) = 4x+8
g(x) = x+3 
Find f(x)  $\cdot$  g(x)

• 4x²+24

• 4x²+20x+24

• 4x²+12x+24

• 4x²+4x+24

Tags

CCSS.HSF-BF.A.1B

f(x) = x²+9

g(x) = x - 9

Find f(x) - g(x).

• x²+x+9

• x²-x+9

• x²-x

• x²-x+18

Tags

CCSS.HSF-BF.A.1B

h(x) = 2x + 1
g(x) = 3x
Find g(h(x))

• 6x + 3

• 2x² + 2x + 1

• 6x³ - 3x² + 3x

• 6x³ - 1

Tags

CCSS.HSF-BF.A.1C

• 2

• 0

• cannot do

• -12

Tags

CCSS.HSF.IF.A.2

• 8x+15

• 6x-15

• 8x-5

• 8x-15

Tags

CCSS.7.EE.A.1