Answer:
Option A. 
Step-by-step explanation:
we know that
If triangle ABC is a right isosceles triangle
then
AB=AC
m<ABC=m<ACB=45°
therefore
The coordinate of point C is 
the x-coordinate of the midpoint M is equal to

The coordinates of point M are 
I think it’s 49 I just looked it up
Answer:
13x - 12 =
Step-by-step explanation:
17x + (-4x) = 13x
(-5) + (-7) = -12
You can type the equation on safari and get the exact graph easily