Inverses and Logarithms

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

Find the inverse of f(x) = x² - 5

• f^-1(x) = √(x) + 5
• f^-1(x) = ∛(x-5)
• f^-1(x) =√(x+5)
• f^-1(x) = x² - 5

Tags

CCSS.HSF-BF.B.4A

Are the following inverses of each other?

• True
• False

Tags

CCSS.HSF-BF.B.4B

Find the inverse of f(x) = 3x +8

• f^-1(x) = 3x - 8/3
• f^-1(x) = 8/3x - 1/3
• f^-1(x) = 1/3x - 8/3
• f^-1(x) = 1/3x + 8/3

Tags

CCSS.HSF-BF.B.4A

• A
• B
• C
• D

Tags

CCSS.HSF-BF.B.4A

• A
• B
• C
• D

Tags

CCSS.HSF-BF.B.4A

Find the inverse 
f(x)=³√(-x+2)

• x³+2
• ³√x+1
• -x³+1
• ³√-2

Tags

CCSS.HSF-BF.B.4A

Write in logarithmic form.
5² = 25

• log₅2 = 25
• log₂25 = 5
• log₂₅5 = 2
• log₅25 = 2

Tags

CCSS.HSF.BF.B.5

Write in exponential form.
log₂32 = 5

• 2^-5 = 32
• 2³² = 5
• 2⁵ = 32
• 32⁵ = 2

Tags

CCSS.HSF.BF.B.5

Write in exponential form.
log₂(¹/₈) = -3

• 2^-3 = ¹/₈
• 2^1/8 = -3
• -3² = ¹/₈
• -3^1/8 = 2

Tags

CCSS.HSF.BF.B.5