At 1:00am the temperature was 87 degrees. A cold front came through and at 7:00pm the temperature was 45 degrees. What is the rate of change in the temperature in degrees per hour.

2nd one in the first row is correct

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

c. 6tan80

step-by-step explanation:

answer: (3,11) is your answer.