03-11-2016
Mathematics

contestada

line a passes through points with the coordinates (-4,5) and (2,-2). what is the slope of a line perpendicular to line a?

Respuesta :

03-11-2016

m1 = - 2 - 5 / 2 + 4
m1 = - 7 / 6

m1 × m2 = - 1
- 7/6 × m2 = - 1
m2 = 6/7

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