7
AssignmentMultiple Choice

Introduction to Modeling with Functions

Question 7 • FL-1200315-Algebra 1 CR

Which statement is true?

Answer
A
The y-intercept of the function is (15, 75).
B
The rate of change is 15 calories burned per minute.
C
A linear function to model the calories burned, y, as a function of time in minutes, x, is y = 5x.
D
An exponential function to model the calories burned, y, as a function of time in minutes, x, is y = 5x.

Explanation

The equation y = 5x is linear because the variable x is multiplied by a constant. Its rate of change is 5 calories per minute, not 15, and its y-intercept is (0, 0). So the true statement is that a linear function modeling the calories burned is y = 5x.

AI-written and checked against the verified answer.

Previous
Next