Answer:

Step-by-step explanation:
has the form
known as a difference of squares. It factors into (a+b)(a-b). To find a and b you take the square root.


The factored for is (a+b)(a-b).
In this case, it is 
D because each y value is obtained by multiplying x by -2
y = -2x which is direct variation.
X/9 - 15
X divided ( / ) by 9 minus ( - ) 9