Ch 6 Practice

Logarithmic functions are the inverse of...

• Linear Functions
• Exponential Functions 
• Quadratic Functions 
• Polynomial Functions 

Describe the transformations of f(x)= -log₂(x+1)

• left 1
• left one & over the y-axis
• left one & over the x-axis
• right one & over the x axis

Write in exponential form.
log₂32 = 5

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

Tags

CCSS.HSF.BF.B.5

Evaluate.
log₃81

• 4
• ¹/₄
• -4
• -¹/₄

The common logarithm has what base?

• 10
• 0
• e
• -e

Evaluate the following logarithm:

log₅5

• 1

• 0

• -1

• ¹/₂

The school lawn is being overtaken by geese.  If there are 12 geese on Monday, and the number of geese increases by 30% every day, how many are there in 2 weeks?

• 12(0.30)¹⁴
• 12(0.30)²
• 12(1.30)¹⁴
• 12(1.30)²

Tags

CCSS.HSF-LE.A.1C

log₄1 = 

• 0
• 1
• 4
• DNE

Tags

CCSS.HSF.BF.B.5

Evaluate.

log₆ (¹/₂₁₆) = x

• 3

• ¹/₃

• -¹/₃

• -3

Write in logarithmic form.
2^-4 = ¹/₁₆

• log₂(¹/₁₆) = -4
• log_-4(¹/₁₆) = 2
• log _-4 2 = ¹/₁₆
• log₂(-4) = ¹/₁₆

Tags

CCSS.HSF.BF.B.5