1.8 Inverse Functions

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

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 is the equation of the line that the inverse of a function will reflect across?

• y = x

• y = 0

• x = 0

• The y-axis

Tags

CCSS.HSF-BF.B.4C

What are the domain and range of f^-1(x)?

• Domain: [2,∞). Range: [3,∞)

• Domain: [3,∞). Range: [2,∞)

• Domain: (3,∞). Range: (2,∞)

• Domain: (2, ∞). Range: (3, ∞)

Tags

CCSS.HSF-BF.B.4C

Was the inverse function found correctly?

• no,
• yes

Tags

CCSS.HSF-BF.B.4A

Are these functions inverses?

• Yes
• No

Tags

CCSS.HSF-BF.B.4B

Find f^-1(x)

• 2/(x+5)
• 2/(x-5)
• (x-5)/2
• 3/x

Tags

CCSS.HSF-BF.B.4A

Are the f(x) and g(x) inverses of each other?

• Yes
• No

Tags

CCSS.HSF-BF.B.4B

f(x) = (x-1)²

g(x) = 3x+4

h(x) = 3x-1

Find f(g(h(3)))

• 8

• 28

• 729

• 54

Tags

CCSS.HSF-BF.A.1C

If the equation of f(x) goes through (1, 4) and (4, 6), what points does f^-1(x) go through?

• (1, 4) and (4, 6)
• (-4, -1) and (-6, -4)
• (-1, -4) and (-4, -6)
• (4, 1) and (6, 4)

Tags

CCSS.HSF-BF.B.4C