Logarithms

Rewrite 3⁴ = 81 in logarithmic form.

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

Rewrite the equation in logarithmic form.

• A
• B
• C
• D

Solve for x:

• 1

• 2

• 4

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

log₄1 = 

• 0

• 1

• 4

• undefined

log₃(4x) = 2

• x=4/9
  x=4/9
• x=9/4
• x=3/2
• x=2/3