Posted by **sonia** on Thursday, October 22, 2009 at 7:35pm.

find the slope, if it exists of the line containing the pair of points. (-19.3, 13.4) and (-17.3, 2.1) The slope m= I came up with m= -4 am I close

- algebra -
**jim**, Thursday, October 22, 2009 at 7:52pm
he slope is just the difference in the ys over the differences in the xs. That is, when you move 1 in the x direction, how far do you move in the y direction.

-4 isn't very far off, but it's not the exact answer:

Your Ys are 13.4 and 2.1

Your Xes are -19.3 and -17.3

(Cereful to keep them in the right order, to avoid reversing a sign!)

So your answer is:

(13.4-2.1) / (-19.3 - (-17.3))

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