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[jessgomez1325]

Consider the line
y=−4x+3
.
Find the equation of the line that is perpendicular to this line and passes through the point
, −5 3
.

Find the equation of the line that is parallel to this line and passes through the point
, −5 3
.

Equation of perpendicularline:​ ​ Equation of parallelline:​ ​

 

[topsquark]

How far have you gotten with this? We can't help if we don't know where you are stuck.

-Dan

 

[pka]

Consider the line $\ell:~y=−4x+3)$.
Find the equation of the line that is perpendicular to this line and passes through the point $P:~(−5, 3)$
.Find the equation of the line that is parallel to this line and passes through the point $P:~(−5,3)$

Any line parallel to $\ell$ has slope $m$.
Any line perpendicular to $\ell$ has slope $-1/m$.