Question

The table shows the height of a candle as it is continuously burned.

A 2-column table with 5 rows. The first column is labeled time (hours) with entries 0, 0.25, 0.5, 0.75, 1. The second column is labeled height (centimeters) with entries 25, 24.375, 23.75, 23.125, 22.5.
Which statement describes the candle?

The candle starts at a height of 25 centimeters and burns at a rate of 0.625 centimeters per hour.
The candle starts at a height of 25 centimeters and burns at a rate of 2.5 centimeters per hour.
The candle starts at a height of 22.5 centimeters and burns at a rate of 0.625 centimeters per hour.
The candle starts at a height of 22.5 centimeters and burns at a rate of 2.5 centimeters per hour.

Answer 1

The candle starts at 25 cm and burns 2.5 cm per hour.

Reason: From 0 to 1 hour the height goes from 25 to 22.5, a decrease of 2.5 cm in 1 hour (or 0.625 cm in 0.25 h = 2.5 cm/h).