Question

Sidney is selling his comic book collection on the Internet. The number of many comic books he has left at the end of each day can be approximated by the equation y = -10x. What is the approximate rate of change for the number of books left each day? Type your answer in the box below.

Answer 1

-10

Explanation:

Given equation: y = -10x

This is a linear equation.

Linear equation: y = mx + b

where m is the slope (rate of change) and b is the y-intercept (initial value)

Therefore, the rate of change is -10. This means that for each day that passes, there will be 10 less comic books left.