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January 25, 2015

January 25, 2015

Posted by **Anonymous** on Wednesday, December 11, 2013 at 1:41pm.

Thank you(:

What is the slope of the line that passes through the pair of points (3/2 , -2) and (-3, 7/3).

- math -
**Reiny**, Wednesday, December 11, 2013 at 1:55pmslope = (difference in the y values)/(difference in the x values), make sure you subract in the "same direction"

slope = (-2 - 7/3)/(3/2 - (-3)

= (-6/3 - 7/3)/(3/2 + 6/2)

=(-13/3) / (9/2)

= (-13/3)(2/9) = -26/27

by subtracting in the same direction ....

we could have done:

slope = (7/3 - (-2)) / (-3 - 3/2)

and obtain exactly the same anwer

- math -
**Anonymous**, Wednesday, December 11, 2013 at 1:58pmThank you so much Reiny I finally understand (: it means a lot!

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