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15-12-2018
Mathematics

contestada

which of the following lines is perpendicular to the line y=-2

A.) y=1/5x+3
B.) y+3=-5(x+2)
C.) y=2
D.) x=-2

Respuesta :

15-12-2018

Answer:

D, x = -2

Step-by-step explanation:

The slope of y = -2 is 0, because it is horizontal. The perpendicular slope of a horizontal slope is a vertical, which has x equaled to a number. The answer is D, x = -2, because its slope is undefined, or vertical. This makes it perpendicular to 0, or horizontal.

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