Algebra

Can someone tell me how to find a perpendicular line -3x+5y=7
My choices are
7/5
3/5
-5/3
-7/5
I cannot figure this out

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asked by Anne
  1. Put the equation in slope intercept form
    y=3/5 x +7/5

    So what slope is the negative reciprocal of 3/5 ?

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