To find slope, use the equation (y2-y1)/(x2-x1). In your case, the equation is going to look like (-3 - -1)/(5 - -2) or (-3 +1)/(5 + 2), and that simplifies to -2/7.
4w = 48
Divide each side by 4. (division property of equality)
w = 12

So, your answer to this problem is
c = 4.
Slope is 1 bc u see where the points are and go up until u find the other point