Exponents and Logs

Rewrite 3⁴ = 81 in logarithmic form.

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

Rewrite log₂8 = 3 in exponential form

• 2⁸ = 3

• 2³ = 8

• 3² = 8

• 8³ = 2

Tags

CCSS.HSF.BF.B.5

Evaluate log₈ 8

• 8
• -1
• 0
• 1

Evaluate.
log₃81

• 4
• ¹/₄
• -4
• -¹/₄

Evaluate:
log₄16

• 2
• 4
• 1/2
• -2

Evaluate log₅125

• 5
• 3
• 125
• 25

ln(e^W)

• e
• W
• e^W
• undefined

ln e⁵= 

• e⁵
• ln 5
• 5
• 5e

Solve for x:
4^x- 5 = 12

• 0.489
• 2.552
• 0.893
• 2.044

Solve for x:
7^x = 18

• 1.258
• 1.1245
• 1.4854
• 1.5849