The points (-1, r) and (1, -1) lie on a line with a slope -3. find the missing coordinate r.

im not sure

step-by-step explanation:

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:

what level of math? also i don't need to be paid if i can you.

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)