Question

The expresssion, –0.25x + 5, models the height of a candle x seconds after it is lit. What is the meaning of the constant term of the function?

Answer 1

the height of the candle before it is lit

Explanation:

When the candle is first lit, time is 0.

At tome 0, x = 0 and the height is -0.25(0) + 5 = 5.

The height is 0 at time zero, so the constant term, 5, represents the height of the candle before it is lit.