Function Practice

If f(x) = 1/2x + 5, what does f(10) =

• 8

• 9

• 10

• 11

Tags

CCSS.HSF.IF.A.2

If f(x) = 2x + 5 what does f(3) =

• 9

• 10

• 11

• 12

Tags

CCSS.HSF.IF.A.2

If f(x) = 3x + 1, then what does f(2) =

• 5

• 6

• 7

• 8

Tags

CCSS.HSF.IF.A.2

f(x)=3x+5

g(x)=x²

f(x)+g(x)

• 4x²+5

• 3x³⁺⁵

• x²+3x+5

• x²+8x

Tags

CCSS.HSF-BF.A.1B

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

• x² + 8x + 1
• x² + 6x - 1
• 5x² + 8x - 1
• x² + 8x -1

Tags

CCSS.HSF-BF.A.1B

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

• 39
• -27
• -23
• -19

Tags

CCSS.HSF-BF.A.1B

• 9 - √17
• 4
• 2
• √8

Tags

CCSS.HSF-BF.A.1C

• -1
• 1
• -1/3
• -5/3

Tags

CCSS.HSF-BF.A.1C

If  $f\left(x\right)=2x$   and  $g\left(x\right)=2x^2-1$   find  $f\left(g\left(x\right)\right)$  

•  $4x^2-1$  

•  $4x^2-2$  

•  $8x^2-1$  

•  $16x^2-1$  

Tags

CCSS.HSF-BF.A.1C

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

• 3x + 8
• 3x - 2
• 3x + 4
• None of these.

Tags

CCSS.HSF-BF.A.1C