M = -7 and it passes through the point (0,4)

Y = -7x + 4

Step-by-step explanation:

y=(-7)x+4

Step-by-step explanation:

y=m(x)+b

we know m so it is

y=(-7)x+b

the y intercept is 4 since the y intercept is when x=0

and we have our answer

y=(-7)x+4

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.