Posted by **HELP exam review !** on Thursday, January 27, 2011 at 9:43pm.

my teacher gave me exam review booklets and there is something i don't understand.. the question is : Find the slope of a line that passes through the points (-9,-3) and (-7,-1).

if someone can please explain to me how to solve this it would help majorly ! :)

- math -
**helper**, Thursday, January 27, 2011 at 10:37pm
If P1(x1,y1) and P2 (x2,y2) are two points on a line, the number m defined by the equation

Slope m = (y2 - y1)/(x2 - x1)

is called the slope of the line.

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