{-2^2+y=-5
{y=-3x^2+5

x=

y= -9

Step-by-step explanation:

To solve this problem you need to use substitution. You substitute into y in and solve for x. Then once you have found the value of x you plug that number into to find the value of y.

I will upload a picture with all of my work.

5

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: