I have no clue how to do this

Y=1x+0

Step-by-step explanation:

Simple y1-y2 over x1-x2 so...

2-(-2)=4

2-(-2)=4

So Slope of 1 then you pick any coordinate on the line and sub in the y. So I choose (0,0) cuz ya know easy.

SO...

Y=1x+0

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.