Logs and Exponential Equations

log₅25 = ?

• 2

• 5

• 125

Evaluate:
log₄16

• 2

• 4

• 1/2

• -2

log₆6

• -1

• 0

• 2

• 1

Rewrite 3⁴ = 81 in logarithmic form.

• log₃4 = 81

• log₈₁3 = 4

• log₃81 = 4

• log₄81 = 3

Change to Exponential Form:
log₆36 = 2

• 2⁶=36

• 6²=36

• 36²=6

• 36⁶=2

The following:
log ₂ 16 = 4 can be written as...

• 2¹⁶=4

• 4²=16

• 4+4+4+4=16

• 2⁴=16

Rewrite log_vn = a in exponential form.

• v^a = n

• n^a = v

• vⁿ = a

• aⁿ = v

Solve for x

• -0.4605

• 1.5395

• 3.5395

• -0.4731

Evaluate.

• 3

• 1

• 0

• 9