Find the slope of the line through (6, -4) and (2, 10).

I solved it by saying (10-4)/(2-6)=-6/4 = -3/2.
So..I came up with m=-3/2 however my answer is wrong. What should I do?

Question

Find the slope of the line through (6, -4) and (2, 10).

I solved it by saying (10-4)/(2-6)=-6/4 = -3/2.
So..I came up with m=-3/2 however my answer is wrong. What should I do?

anonymous · Answer

Step 1: draw a picture:
|dw:1317692535411:dw|

By looking at the picture you can see that deltaX = 4 and deltaY = -14.  You got a deltaY of -6.  That doesn't jive with the picture, so start looking for why your calculated deltaY doesn't look like the one in the drawing.  (Hint: you have a sign wrong.)