

Exponential Functions and Decay Rates
Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Liam Anderson
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial value of the exponential function y = 20 * (1/2)^x?
30
40
10
20
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which term describes how quickly the exponential function decreases?
Intercept
Decay rate
Slope
Growth rate
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the decay factor of the function y = 20 * (1/2)^x?
0.5
1
0.75
0.25
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At x = 1, what is the y-value of the graph if it starts at 12?
12
3
6
9
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the graph's y-value change from 12 to 3?
It halves
It quarters
It doubles
It remains the same
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which decays faster, the function or the graph?
Both decay at the same rate
The graph
The function
Neither decays
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the y-intercept of the function y = 20 * (1/2)^x?
20
24
10
12
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