Function Review

What is the RANGE?

• {-3, 3]
• all real numbers
• [-4, 5]
• [-4, ∞)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the RANGE?

• all real numbers
• [1, ∞)
• (-∞, 1]
• none of these

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

• (-∞, ∞)
• [-2, 2]
• (-2, 2)
• [-5, 5]

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the DOMAIN of this graph?

• -4 ≤ x ≤ 3

• -1 ≤ x ≤ 4

• 4 < x < 3

• -1 < x < 4

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Find the inverse of f(x) = -4x - 12

• f^-1(x) = 4x - 3
• f^-1(x) = -1/4x - 3
• f^-1(x) = 1/4x + 3
• f^-1(x) = -4x - 3

Tags

CCSS.HSF-BF.B.4A

Are the following inverses of each other? Use composition of functions. fog(x) and gof(x)

• True

• False

Tags

CCSS.HSF-BF.B.4B

Was the inverse function found correctly?

• no,
• yes

Tags

CCSS.HSF-BF.B.4A

Find the inverse of
f(x) = 1/4x - 7

• f^-1(x) = 4x + 7
• f^-1(x) = -4x + 28
• f^-1(x) = -4x - 7
• f^-1(x) = 4x + 28

Tags

CCSS.HSF-BF.B.4A

What does it mean to find the inverse of a function?

• the x's and y's are switched
• the x's and y's are divided by 2
• the x's and y's are made negative
• the x's and y's are the same

Tags

CCSS.HSF-BF.B.4A

When is this function increasing?

• -3<x<3

• -2.5<x<2.5

• x>2.5

• x>3

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7