algebra

wright the equation of a line that is perpendicular to the given line and that passes through the given point
y-4=5/2 (x+3);(-7,8)

y-8=-2/5 (x-7)
y-8=2/5(x-7)*
y-8=-2/5(x+7)
y-8=2/5(x+7)

i’m not sure please help thank you:-)

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asked by Bill
  1. Perpendicular lines have slopes that are opposite reciprocals of each other
    So if your given line has slope 5/2 as shown, then the slope of the perpendicular must be -2/5
    This immediately rules out b) and d)
    leaving a) and c) , [your choice was b)]
    sub in the given point, and see in which equation it satisfies.

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