Are the lines x – 2y = 4 and y = 2x – 2

a. perpendicular
b. parallel
c. or neither

C

Step-by-step explanation:

x - 2y = 4

-2y = -x + 4

y = 1/2x - 2

y = 2x - 2

Almost perpendixular but not quite. Parallel lines must have the same slope. Therefore, it's neither

26

step-by-step explanation:

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14