What is the slope of the line perpendicular to $y = - \frac{4}{15} x + 15$ $y=-4/15x+15$ ?

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Answer 1 · 2015-12-30T01:05:23

Perpendicular lines have a slope equal to the negative reciprocal ...

The slope of the given line is $m = - \frac{4}{15}$ $m=-4/15$

The negative reciprocal: $m'=-(-15/4)=15/4$

So, the slope of the perpendicular line is $15/4$

Hope that helps

What is the slope of the line perpendicular to y=-4/15x+15 y=−415x+15y=-4/15x+15 ?