Logarithms Review

Write in exponential form.
log₂32 = 5

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

Tags

CCSS.HSF.BF.B.5

Rewrite in Logarithm form
5^x = 17

• x = log₁₇5
• x = log 5 + log 17
• x = log₅17
• x = (log 5)/(log 17)

Tags

CCSS.HSF.BF.B.5

Solve for x:
8^x+1= 3

• 0.528
• 0.893
• -0.472
• 1.893

Tags

CCSS.7.EE.B.4A

Solve the equation for x.

• 32
• 25
• 1.66
• 512

Tags

CCSS.HSF.BF.B.5

6^-3x=216

• x=3

• x=-1

• x=6

• x=-3

Solve

14^4-6x = 11

(round to the nearest tenth)

• 5

• 0.5

• 0.1

• 1

ln(9x-2)=ln(x+14)

• x=2
• x=.156
• x=-3
• x=0

Rewrite log₂8 = 3 in exponential form

• 2⁸ = 3

• 2³ = 8

• 3² = 8

• 8³ = 2

Tags

CCSS.HSF.BF.B.5

Rewrite 3⁴ = 81 in logarithmic form.

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

Tags

CCSS.HSF.BF.B.5

Solve for x:
log_x 25 = 2

• 5
• -5
• 1/5
• -1/5

Tags

CCSS.HSF.BF.B.5