Sunday, December 13, 2015

Find the equartion of the line passes through (2,-3) and parallel to the line 8x - 2y +3 = 0

Given the point (2,-3) passes through the
line.


We know that the equation of the line is given by
:


y-y1 = m(x-x1) where m is the slope and (x1,y1) is any
point on the line.


We will substitute with the given point
( 2,-3)


==> y- (-3) = m(
x-2)


==> y+ 3 =
m(x-2)


Now we know that the line is parallel to the line
8x-2y+3 = 0


Then the slopes are
equal,


We will rewrite into the slope
form.


==> -2y = -8x
-3


==> y= 4x + 3/2


Then
the slope is 4.


Now we will substitute into the
equation.


==> y+ 3 =
m(x-2)


==> y+3 =
4(x-2)


==> y+3 = 4x -
8


==> y= 4x
-11


==> Then, the equation of the line
is : y-4x + 11 = 0

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