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Whichequation has a graph perpendicular to the graph of 7x = 14y -8? 1- y= - 2x-7 2-m y= - 1./2x +4 3- y = 1/2x + 1 4- y = 2x + 9

Blair Lewis

in Mathematics

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Amanda Johnson on February 9, 2019

In order to have a slope that is perpendicular, it has to be the opposite of the original. To find the original, you would have to find the value of y= in the given. Well, if you're going to add 8 to both sides, you get 7x + 8 = 14 and. To get y by itself, you have to divide everything by 14. So you get y = 1/2x + 8/14 (or 4/7). So that the slope of the graph has to be the opposite of 1/2 (since this is the value of m, the slope). The opposite of 1/2 is the sign changed and the equation is flipped; in other words, - 2/1. As this is the m value of the equation of the perpendicular, the answer would be (A) y= -2x-7


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