Logs Recap

• 6

• 5

• 2

• 3

Without a calculator, determine which of the following yields a negative answer.

• log₉ (¹/₃₀)

• log₉ 3

• log₉ -81

• log₉ 1

Without a calculator, evaluate log₄1

• ¹/₄

• 0

• -1

• not possible

Write in exponential form.
log₂32 = 5

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

Logarithmic functions are the inverse of...

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

Evaluate:
log₄16

• 2
• 4
• 1/2
• -2

Evaluate.
log₃81

• 4
• ¹/₄
• -4
• -¹/₄

What is the base in this log expression: log 100 = 2

• 100

• 2

• 1002

• 10

• no solution (undefined)

• 4

• 0

• 1

Convert and calculate for x

$$
\log_9\left(x\right)\ =\ 3 

• 14

• 49

• 128

• 214