The lines represented by the equations 4y + 4x = 8 and y - x = -2 are neither parallel nor perpendicular
the same line
perpendicular
parallel

4 y = -4 x + 8    or y = -x + 2

y - x = -2           or y = x - 2

using the standard form for a line   y = m x + b

We see that in one equation m = -1 and in the other m' = +1

this is the condition for perpendicular lines

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42

-4, -2, 1, 4

step-by-step explanation:

domain = x values

range = y values