AnswersRecovery Content Sec Math 3 - Quarter 4 - 202627Domain and Range — Unit testQuestion 24
24
QuizMultiple Choice

Domain and Range — Unit test

Question 24 • Recovery Content Sec Math 3 - Quarter 4 - 2026/27

Review the table of values showing the mass of a radioactive isotope over time.Time (Seconds)Mass Remaining (Milligrams)2134856.5102121.2

Answer
A
In the logarithmic regression model, the explanatory variable is time and the response variable is the remaining mass.
B
In the logarithmic regression model, the explanatory variable is time and the response variable is the remaining mass.
C
In the logarithmic regression model, the explanatory variable is the remaining mass and the response variable is time.
D
In the logarithmic regression model, the explanatory variable is the remaining mass and the response variable is time.
E
In the exponential regression model, the explanatory variable is time and the response variable is the remaining mass.
F
In the exponential regression model, the explanatory variable is time and the response variable is the remaining mass.
G
In the exponential regression model, the explanatory variable is the remaining mass and the response variable is time.
H
In the exponential regression model, the explanatory variable is the remaining mass and the response variable is time.

Explanation

Radioactive decay is modeled with an exponential relationship: the amount remaining changes as time passes. Time is the explanatory variable because it is used to predict the mass, and remaining mass is the response variable. Choice E describes an exponential regression with time as the explanatory variable and remaining mass as the response variable.

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