Question

The slope of the graph is –1. Which statement describes how the slope is related to the burning of a candle? candle height increases 1 cm per hour candle height decreases 9 cm per hour candle is 1 cm tall candle burns down 1 cm per hour

Answer 1

candle burns down 1 cm per hour

Explanation:

Slope is rate of change. It describes how the dependent variable, y, changes as the independent variable, x, increases.

A slope of -1 means that for every increase by 1 on the x-axis, the y values decreases by 1.

In this situation, our variables would be candle height and time; time would be independent, so it would be the x variable. Candle height would be dependent, so it would be the y variable.

This means that for every hour increase in time, the candle's height decreases by 1 cm.