Exponential Decay: Understanding the Formula and Solving Problems
Interactive Video
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Mathematics
•
9th - 10th Grade
•
Hard
Wayground Content
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What condition must be met for exponential growth to occur?
The growth rate (K) must be negative.
The growth rate (K) must be zero.
The growth rate (K) must be positive.
The initial value (A) must be zero.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an exponential decay graph, what does the Y-intercept represent?
The rate of decay.
The time taken for decay.
The initial value of Y.
The final value of Y.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can a negative power in an exponential decay equation be rewritten?
As a logarithm.
As a fraction.
As a square root.
As a positive integer.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the constant 'A' in the general exponential formula?
It represents the rate of growth.
It is the variable representing time.
It is the final value after growth.
It is the initial starting value.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the context of exponential decay, what does a negative K value indicate?
The process is indeed exponential decay.
The process is actually exponential growth.
The decay process is slowing down.
The decay process is accelerating.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the half-life of a substance if it takes 20 days to reduce to half its initial mass?
40 days
30 days
20 days
10 days
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which mathematical operation is used to solve for the decay constant (K) in the example provided?
Logarithms
Subtraction
Multiplication
Addition
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