Review of Logarithms

Write in exponential form:

log ₂ 32 = 5

• 2⁵ = 32

• 5² = 32

• 5³² = 2

• 2³² = 5

Write in logarithmic form:
9² = 81

• log ₉ 81 = 2
• log ₂ 81 = 9
• log ₉ 2 = 81
• log ₂ 9 = 81

Evaluate log₄1

• 1
• 0
• 4
• undefined

Evaluate log₅25

• 2
• 5
• 125

Evaluate: log₉3

• ½
• -½
• 2
• -2

Evaluate
log₆ (1/6)

• - 1/6
• 1/6
• -1
• 1

Evaluate: log₆₄4

• 3
• -3
• ⅓
• -⅓

log₂⅛

• -3
• -4
• 2
• 8

Write log_b(xy) as two logs

• log_bx+log_by
• log_bx-log_by
• log_bx*log_by
• log_bx/log_by

Write log_b(x/y) as two logs

• log_bx-log_by
• log_bx+log_by
• log_bx*log_by
• log_bx/log_by