Writing Exponential Equations
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Writing Exponential Equations
Quiz
•
Mathematics
•
9th Grade
•
Medium
+7
Standards-aligned
Katelyn Cavitt
Used 16+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A substance starts with a mass of 310 grams and decays at 8.9% per hour. Write an equation to model the situation.
Answer explanation
The initial mass is 310 grams, so a = 310. Find the mulitplier:
100% - 8.9% = 91.1%
Covert this percent to a rate by dividing by 100.
91.1/100 = 0.911
So, b = 0.911
Tags
CCSS.HSA.CED.A.1
CCSS.HSF.BF.A.1
CCSS.HSF.LE.A.1
CCSS.HSF.LE.A.2
CCSS.HSF.LE.B.5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
282 grams
5,366 grams
5 grams
53 grams
Tags
CCSS.HSA.CED.A.1
CCSS.HSA.SSE.A.1
CCSS.HSF.LE.A.1
CCSS.HSF.LE.B.5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Write the equation of the exponential function.
Answer explanation
The y-intercept is (0,2), so a = 2.
Find b by dividing a y-value by the previous y-value.
b = 8/2 = 4
Tags
CCSS.HSA.CED.A.1
CCSS.HSF.BF.A.1
CCSS.HSF.LE.A.1
CCSS.HSF.LE.A.2
CCSS.HSF.LE.B.5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Answer explanation
Find b by dividing a y-value by the previous y-value.
b = 24/12 = 2
Find a by diving 12 by b
a = 12/2 = 6
Tags
CCSS.HSF.BF.A.1
CCSS.HSF.LE.A.1
CCSS.HSF.LE.A.2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The cooking club has 3 original members and doubles in size each year.
Answer explanation
There are 3 original members, so a = 3.
"doubles" = x2
So, b = 2
Tags
CCSS.HSF.BF.A.1
CCSS.HSF.LE.A.1
CCSS.HSF.LE.A.2
CCSS.HSF.LE.B.5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Answer explanation
Find b by dividing a term by the previous term.
b = 25/100 = 0.25
Find a by dividing 100 by b
a = 100/0.25 = 400
Tags
CCSS.HSF.BF.A.2
CCSS.HSF.LE.A.2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tags
CCSS.HSG.GPE.B.6
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