WILL GIVE BRAINLIEST QUICK PLEASE Input (x) Output (y) 8 −40
11 −49
14 −58
17 −67
What is the rate of change of the function?

Enter your answer as a number, like this: 42

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here