Verified answer

rise over run

y2 - y1 / x2 - x1 = (-2 - 10) / (4 - (-2)) = -12 / 2 = -2

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distance between horizontal coordinates = -2 - 4 = -6 units

distance between vertical coordinates 10- (-2) = 12

slope = -2

y = -2x + c

take either of the two pairs of coordinates: x = -2, y = 10

10 = 4 + c so c = 6

y = -2x + 6

The change in y divided by the change in x.

That is: -2-10/4-(-2)= -12/6 = -2

y2 - y1 / x2 - x1

- 2 - 10 / 4 - - 2

- 12 / 6 = - 2

You need to take the rise over run...the x numbers over the y numbers...

slope=(y1-y2)/(x1-x2)=12/(-6)=-2