Logarithms

Write in exponential form.
log₂32 = 5

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

Rewrite 3⁴ = 81 in logarithmic form.

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

Write in logarithmic form.
5² = 25

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

Write in exponential form.
log₂32 = 5

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

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

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

Evaluate:
log₄16

• 2
• 4
• 1/2
• -2

Evaluate.
Log₂64

• A
• B
• C
• D

log₄1 = 

• 0
• 1
• 4
• DNE

log₅(25) = y

• y = 2
• y = 0.5
• y = 5
• y = (1/2)

log₃(1) = y

• y = 0
• y = 1
• y = (1/3)
• y = 2