Logarithms Review

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

Who is this famous dog?

• Snoopy

• Fido

• Pluto

• Scooby

Evaluate:
log₄16

• 2

• 4

• 1/2

• -2

log₄1 = 

• 0

• 1

• 4

• DNE

Solve for x
5^x = 17

• x = log₁₇5

• x = log 5 + log 17

• x = log₅17

• x = (log 5)/(log 17)

Solve for x
log₈(x) = 2

• x = 256

• x = 64

• x = 16

• x = 32

What is the fastest bird on foot?

• Ostrich

• Sparrow

• Eagle

• Dragon

• Woodpecker

Solve for x:

• 1

• 2

• .5

• 4

log₂(x + 5) = 3

• 3

• 4

• 5

• 6