Keep in mind that slope = "change in Y over change in X" and that the number pairs are written in the form of (x, y).
Slope = (y2 - y1) / (x2 - x1)
So:
Slope = (2 - (-3)) / (6 - (-4))
Slope = (2 + 3) / (6 + 4)
Slope = 5 / 10
Slope = 1/2, or 0.5
(simple algebra factoid: remember that when you subtract a negative number, the two "negatives" cancel out and you end up adding the two numbers: 6 - (-4) is the same as 6 + 4.
Good luck!
