
4/27 ALG Live Review - Solving Log Equations
Presentation
•
Mathematics
•
9th - 10th Grade
•
Hard
Jennifer Hedges
Used 4+ times
FREE Resource
5 Slides • 3 Questions
1
Solving Log Equations
2
Multiple Choice
Q1: Solve log(3u+14)−log5=log2u
u=4
u=6
u=2
u=1
3
log(3u+14)−log5=log2u
Quotient Property: log (53u+14)=log 2u
One-to-One: 53u+14=2u
Multiply by 5: 3u+14=10u
Solve for u: 14=7u
2=u
4
Multiple Choice
Q2: Solve
log7n=32log78
n=1
n=3
n=6
n=4
5
log7n=32log78
Power Property: log7n=log7832
Simplify: log7n=log7 382
log7n=log7 364
log7n=log74
One-to-One: n=4
6
Multiple Choice
Q3: −8 + log6 (x + 1) = −7
5
6
−91000
124
7
−8 + log6 (x + 1) = −7
Isolate the log: log6 (x + 1) = 1
Exponential Form: 61=x+1
Solve for x: 5=x
8
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Solving Log Equations
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