Evaluating Basic Logarithms

Rewrite 3⁴ = 81 in logarithmic form.

• log₃4 = 81

• log₈₁3 = 4

• log₃81 = 4

• log₄81 = 3

The common logarithm has what base?

• 10

• 0

• e

• -e

Evaluate log_b(b)

• -1

• 0

• 1

• b

Rewrite log_pt = m in exponential form.

• p^t = m

• t^m = p

• m^t = p

• p^m = t

log₅25 = ?

• 2

• 5

• 125

Expand

• log₈x+log₈y+log₈z

• 5log₈x+5log₈y+5log₈z

• log₈xy+5log₈z

• log₈x+log₈y+5log₈z

Condense

• log₈(x⁶)/log₈(y³)

• log₈(x⁶/y³)

• log₈(x/y³)

• log₈(x⁶y³)

Condense

• log₈x³y⁹

• log₈(x³/y⁹)

log ₃ 9 =

• 1/2

• 2

• 1/3

• 3

log (1/10,000)

• 1/4

• -4

• 1000

• -1000