A. Judy made a mistake between Steps 1 and 2
To factor

, you have to factor it as

, not

, because that will leave an extra 6x because of 8x - 2x.
Make them both equal to y
y=-2x+6
2y=x+6 y=1/2x+3
These are perpendicular since ones slope is -2 and the other is the opposite, 1/2.
Answer: 
<u>Step-by-step explanation:</u>
(1) (12, 18, 27, ...)
The common ratio is:

The equation is:


The equation is:

Answer:
x = ± 2
Step-by-step explanation:
Given
x² = 20 ( take the square root of both sides )
x = ±
= ±
= ± 2
First you would add 5 to both sides
X/8=3
Then multiply both sides by 8
X=24