Question

Select all the correct answers.
Bradley is returning home from a place that is 2 kilometers away. The function y = 2,000 − 90x represents Bradley's distance from home in meters, y, in relation to the number of minutes he walks, x.

Which statements about this function are true?

The function is a linear function.
The function is a nonlinear function.
The function does not change at a constant rate.
The function is an increasing function.
The function changes at a constant rate.

Answer 1

Correct answers:
- The function is a linear function.
- The function changes at a constant rate.

Explanation: y = 2000 − 90x is a linear equation with slope −90, so the distance decreases at a constant rate of 90 meters per minute (not increasing).