Answer:
The leghts of AB is 9 because both of the triangles are symmetrical. But also, this is a Equilateral triangle, which means that both of the sides are the same lengths (AB=AC)
The answer is B.) x2-14x+2y
C. y = 0.5x.
The coefficient of x is the slope of the line. From the picture, you can see that the slope of the blue line is half the slope of the black line.
