Afootball team gained 8 yards on the first down. they lost 12 yards on the second down. the following exspression represents the total yardage: 9+-12. what is the total yardage on the first two downs?

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:

0.50 , 0.75

step-by-step explanation: