Find the slope of the line that passes through (2, 1) and (7, –2).
use the equation to solve for slope: slope= (y2-y1)/(x2-x1) or the change in the y divided by the change in the x
(-2+1)/(7-2) to find the slope
i still don't get it
This website can help explain finding the slope when you're given two points like this problem: http://coolmath.com/algebra/08-lines/06-finding-slope-line-given-two-points-01.htm This picture sums it up nicely though: http://coolmath.com/algebra/08-lines/images/06-lines-06.gif So in this case, the problem would look like this: (-2+1) ------ (7-2)
Think of two points on the line (both given to you in this problem) the first you can call (x1,y1) and the second (x2,y2) use the equation (y2-y1)/(x2-x1) to find the slope.
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