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1.Find the equation of the line perpendicular to x−5y=15 that passes through the point (−2,5)

2.Find the equation perpendicular to the line y=−3x+5 that passes through point (2, 6).

 

Plz help me I've been working on this for hours

 Oct 7, 2019
 #1
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I will give you a hint,

 

whenever an equation is perendicular, it has the NEGATIVE RECIPROCAL of the original slope.

 

This is an example problem:

 

y = 2x + 9 and passes through ( 4, 2)?

 

So new slope is 2 =>   -1/2

 

y = -1/2x + b

 

2 = -4/2 + b             (Plug in coordinates (4, 2)

 

4 = b

 

 

 

So the equation is  y = -1/2x + 4

 Oct 7, 2019

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