Functions

If f(x) = -4x - 5 and
g(x) = 3 - x,
what is g(-4) + f(1)?

• 7
• -2
• -9
• -10

Tags

CCSS.HSF.IF.A.2

When f(x) = 9 - 3x and g(x) = 5x - 7, find f(x) + g(x).

• 14x - 10

• -8x + 2

• 2x + 2

• 2x - 2

Tags

CCSS.HSF-BF.A.1B

When f(x) = x² + 9 and 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

When f(x) = 4x + 8 and

g(x) = x + 3, find

f(x) * g(x).

• 4x² + 24

• 4x² + 20x + 24

• 4x² + 12x + 24

• 4x² + 4x + 24

Tags

CCSS.HSF-BF.A.1B

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

• -1

• 1

• 5

• -5

Tags

CCSS.HSF.IF.A.2

What is the domain of the graph?

• [1, 4]

• (1, 4)

• 1 ≤ y ≤ 4

• 1 < y < 4

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the range of the graph?

• 1 ≤ x ≤ 5

• 1 < x < 5

• [1, 5]

• (1, 5)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is x if
f(x) = -2?

• 4
• 0
• 3
• 8

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

The function c(m) = 1.45m + 3.50 represents the cost of a taxi for m miles.
What does c(7) represent?

• A cost of $7 to ride the taxi
• The cost to ride 7 miles
• The minimum distance to ride a taxi
• The minimum cost of a taxi

Tags

CCSS.HSF.LE.B.5