Logarithm - Change of Base
Authored by Magdalena Djuric
Mathematics
10th Grade
CCSS covered
Used 18+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
36
2
6
5.17
Answer explanation
Now we have log 36 with a base of 2.
We can only do logarithms with a base 10 or e on a calculator... so, we need to use the formula to change the base.
Change it to 10 and type
log (36) /log (2)
Tags
CCSS.HSF.BF.B.5
2.
DRAW QUESTION
10 mins • 1 pt
Pay attention to a and b.
New base c can be whatever you choose.
3.
MULTIPLE SELECT QUESTION
10 mins • 5 pts
Tags
CCSS.HSF.BF.B.5
CCSS.HSF.LE.A.4
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
3.569
1.176
15
4.907
Answer explanation
Solution
Tags
CCSS.HSF.BF.B.5
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
2.162
1.161
0.097
3.278
Answer explanation
Remember the formula?
5 and 4 will move (5 in the numerator and 4 in the denominator), and you can choose a new base to be whatever you want.
e or 10 will work.
Tags
CCSS.HSF.BF.B.5
CCSS.HSF.LE.A.4
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
2.10
1.18
1.07
1
Tags
CCSS.HSF.BF.B.5
CCSS.HSF.LE.A.4
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
What is Log 3.55?
0.55
12.18
0.75
1.18
Tags
CCSS.HSF.BF.B.5
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