Function Substitution

Which shows the correct substitution for:  "Evaluate f(6)"

• (6) = x + 5

• f(x) = (6) + 5

• 6 = 6 + 5

Tags

CCSS.HSF.IF.A.2

Evaluate f(-2) if f(x) = x²+ 3

• -1

• 1

• 7

• -7

Tags

CCSS.HSF.IF.A.2

What is f(1)?

• 1

• 5

• 0

• 4

Tags

CCSS.HSF.IF.A.2

Given f(x) = 2x² + 5x - 17, find f(-1). 

• f(-1) = -20

• f(-1) = -24

Tags

CCSS.HSF.IF.A.2

Which choice shows substitution correctly?

• 3x - (-6x +3) = 10

• 3(-6x + 3) - y = 10

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve for f(10):
f(10) = -x - 5

• 15

• -5

• -15

• 50

Tags

CCSS.HSF.IF.A.2

What is the value of x in:
f(3) = 2x + 1

• 3

• 2

• 1

• 0

Tags

CCSS.HSF.IF.A.2

Given f(x)=5x-2 and g(x)=x², find f(2)+g(7)

• 8

• 57

• 49

• -41

Tags

CCSS.HSF.IF.A.2

The function h(t) represents the height in inches of a plant after t weeks. What does the notation h(4) = 5 mean?

• After 5 week the plant is 4 inches tall

• The plant grows at a rate of 5/4 inch per week

• After 4 weeks the plant is 5 inches tall

• The plant grows at a rate of 1 inch per week

Tags

CCSS.HSF.IF.A.2

If a question asks you to find f(2), what does that mean?

• Let x = 2

• Let y = 2

Tags

CCSS.HSF.IF.A.2