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Mathematics 18 Online
OpenStudy (anonymous):

A line goes through points (4,12) and (10,3). What is the slope of the line? -3 8 -1.5 -0.75

jimthompson5910 (jim_thompson5910):

use the slope formula m = (y2-y1)/(x2-x1)

jimthompson5910 (jim_thompson5910):

in this case (x1, y1) = (4, 12) so x1 = 4 y1 = 12

OpenStudy (anonymous):

right 6, down 9

jimthompson5910 (jim_thompson5910):

also (x2, y2) = (10,3) so x2 = 10 y2 = 3

OpenStudy (anonymous):

Okay thanks!!

jimthompson5910 (jim_thompson5910):

yw

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