SOLUTION: Please help me find the solution to this problem: Find the equation of a straight line through (-3,2) that is perpendicular to X+3y=6 with the equation in standard form.

Algebra ->  Equations -> SOLUTION: Please help me find the solution to this problem: Find the equation of a straight line through (-3,2) that is perpendicular to X+3y=6 with the equation in standard form.      Log On


   



Question 204911: Please help me find the solution to this problem:
Find the equation of a straight line through (-3,2) that is perpendicular to X+3y=6 with the equation in standard form.

Found 2 solutions by stanbon, MathTherapy:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find the equation of a straight line through (-3,2) that is perpendicular to X+3y=6 with the equation in standard form.
--------------
The given line has slope = (-1/3)
---
Any line perpendicular to it must have slope = 3
----
Find the y-intercept:
2 = 3(-9)+b
2 = -27 + b
b = 29
---------------
Equation: y = 3x + 29
============================
Cheers,
Stan H.

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

x + 3y = 6
3y = -x + 6
y+=+-%281%2F3%29x+%2B+2

Since the equation of the line that passes through the point (-3, 2) is perpendicular to: y+=+-%281%2F3%29x+%2B+2, then its slope is 3

Therefore, using the point-slope formula: y-y%5B1%5D=m%28x-x%5B1%5D%29, we get:

y - 2 = 3(x - -3)

y - 2 = 3x + 9

highlight_green%28y+=+3x+%2B+11%29