What is the slope of the line on the graph?

m = 6

Step-by-step explanation:

slope = m = rise/run = (Y2-Y1)/(X2-X1)

y = mx + b

where b is y-intercept

Looking at the graph we know that (0,-1) is y-intercept.

Easiest way is to count:

so from point (0,-1) to the next point which is (1,5)

y moves top 6 (so it's positive 6)

x moves right 1 (positive 1)

remember m = rise/run = change in y / change in x = 6/1

therefore slope is 6

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.