
Exponential Decay and Functions

Interactive Video
•
Mathematics, Science
•
9th - 12th Grade
•
Hard

Jackson Turner
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial amount of the radioactive substance?
160 milligrams
120 milligrams
25 milligrams
32 milligrams
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the exponential decay function, what does 'a' represent?
The initial amount
The remaining amount
The decay rate
The time elapsed
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the ordered pair used to solve for the base 'b'?
(25, 120)
(32, 110.7)
(160, 120)
(25, 160)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you isolate the base 'b' in the equation?
Subtract 25 from both sides
Divide both sides by 160
Divide both sides by 120
Multiply both sides by 160
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the ordered pair (25, 120) in the context of the problem?
It is irrelevant to the problem
It shows the remaining amount after 25 hours
It is used to calculate the decay rate
It represents the initial amount
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the simplified form of the exponential decay function?
p(t) = 160 * (3/4)^(t/25)
p(t) = 120 * (3/4)^(t/25)
p(t) = 160 * (4/3)^(t/25)
p(t) = 160 * (3/4)^t
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the base 'b' left in its exact form?
To avoid rounding errors
To simplify calculations
To make it easier to understand
To increase accuracy
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