The equation below describes a proportional relationship between x and y. What is the constant of proportionality?
5
yax
The constant of proportionality is

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

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:

answer: 7

step-by-step explanation: