448,250 views
9 votes
9 votes
Audrey & Jack begin a candlelight

dinner at 5pm with a 9-inch candle. At

8pm, their candle is only 3 inches.

What is the average rate of change of

the height of the candle per hour?

User AlvinH
by
2.8k points

1 Answer

16 votes
16 votes

Answer:

-2 inches per hour

Explanation:

Finding the average rate of change is just like finding the slope. So, take the y values (height) and subtract them and divide that by the difference in the x values (time).

( 3 - 9 ) / ( 8 - 5 )

= -6 / 3

= -2 inches per hour

User Avhi
by
2.4k points
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