joel7648 joel7648

04-06-2018
Mathematics

contestada

On a cartesian coordinate plane, point a is at (-2, 2) and point b is at (1, -4) what is the equation for line ab

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altavistard altavistard

08-06-2018

The slope of this line is

2-(-4)
m = ------------ = -6/3 = -2.
-2 - 1

Starting with y = mx + b, -4 = -2(1) + b, or -4 = -2 + b. Then b= -2, and the
equation is

y = -2x -2.

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