1. which polynomial does the model represent

(Model shows: 1 big black square, 2 long white rectangles, 3 long black rectangles, 3 small white squares, 1 small black square)

i think it is 70

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:

one set of data has more variation than the other. hope this !