Common Logarithm

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

Expand the logarithm.

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Condense the logarithm.

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The common logarithm has what base?

• 10
• 0
• e
• -e

Logarithms are the inverse of ___________.

• Trees
• Quadratics
• Square
• Exponential

Tags

CCSS.HSF.BF.B.5

12 log u + 3 log v

• log(v³u¹²)
• log(vuw⁴)
• log(u³/v¹²)

2 log x-6 log y

• log(y²x⁶)
• log(x³/y²)
• log(x²/y⁶)

Rewrite log x = 20 in exponential form.

• 1²⁰=x
• e²⁰=x
• 10²⁰=x
• x¹⁰=20

Tags

CCSS.HSF.BF.B.5

Write as a single log: log 12 + 2 log x

• log (12 + 2x)
• log (14x)
• log (12 * 2x)
• log (12x²)