Intro to Logs Quiz Review

Rewrite log₂8 = 3 in exponential form.

• 2⁸ = 3
• 2³ = 8
• 3² = 8
• 8³ = 2

Rewrite 3⁴ = 81 in logarithmic form.

• log₃4 = 81
• log₈₁3 = 4
• log₃81 = 4
• log₄81 = 3

Change to Logarithmic Form:
12² = 144

• log ₂ 144 = 12
• log ₁₂ 144 = 2
• log ₁₂ 2 = 144
• log ₂ 12 = 144

Solve for x.
log₅25 = x

• 2
• 5
• 125
• 0.2

Solve for x.
log₅ 1 = x

• 0
• -1
• 2
• 1

Use the change of base formula and your calculator to approximate the log.

• A
• B
• C
• D

Use the change of base formula and your calculator to approximate the log.

• A
• B
• C
• D

Evaluate the following logarithm:

log₃27

• 3

• 2

• -3

• ¹/₃

Evaluate the following logarithm:

log₅5

• 1

• 0

• -1

• ¹/₂

• 35

• 1.544

• 10

• 3.5