The line defined by the equation y = - (4/7) x+5 is prependicular to the line defined by which equation? (1) y = (4/7) x+3 (2) y = - (4/7) x+3 (3) y = - (7/4) x+3 (4) (7/4) x+3

Question

Mathematics

Lion

14 August, 13:34

The line defined by the equation y = - (4/7) x+5 is prependicular to the line defined by which equation? (1) y = (4/7) x+3 (2) y = - (4/7) x+3 (3) y = - (7/4) x+3 (4) (7/4) x+3

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Answers (1)

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Herp Derp · Answer 1

Y=mx+b

m=slope

perpendicular lines have slopes that multiply to - 1

the line we have is y=-4/7x+5

therefor

if the slope we are looking for is m

(-4/7) m=-1

times - 7/4 both sides

m=7/4

we are looking for

y=7/4x+b

last one is answer