Finding Logarithms

Write in logarithmic form:
9² = 81

• log ₉ 81 = 2

• log ₂ 81 = 9

• log ₉ 2 = 81

• log ₂ 9 = 81

log₄ x = 3

• 4

• 12

• 32

• 64

Log with a base "e" (log_e) is the same thing as...

• "e"

• Natural Logarithm (LN)

• Common Logarithm (Log)

• Natural Log, base "e"
  LN_e

log ₂₅ 5 =

• 1/2

• 2

• 1/5

• 5

Solve the equation for x.

• 7.389

• 0.693

• 0.0183

• 6.581

Solve for x:

• 1

• 2

• .5

• 4

Log with a base "e" (log_e) is the same thing as...

• "e"

• Natural Logarithm (LN)

• Common Logarithm (Log)

• Natural Log, base "e"
  LN_e

log ₉ 27 =

• 3

• 2/3

• 3/2

• 1/3

log _a a =

• 10

• 0

• 1

• -1

log ₂ 16

• 3

• 2

• 4

• 5