laylaszbir laylaszbir

19-06-2018
Mathematics

contestada

which of the following lines has a slope of -1/2?

a)x+2y=0
b)x-2y=0
c)-x+2y=0

Respuesta :

altavistard altavistard

19-06-2018

In all 3 cases, solve the equation for y. Example: 3rd equation: Add x to both sides, obtaining 2y = x. Divide both sides by 2, obtaining y = (1/2)x.

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LittleGray LittleGray

19-06-2018

the answer is A) x + 2y = 0
move the X over : 2y = -x + 0
then divide both sides by 2
y = -1/2x + 0

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