SOLUTION: How do you find the slope of the line defined by the given condition of perpendicular to x=3y? I know the answer is -3 I just don't know hoe to get to it.

Algebra ->  Radicals -> SOLUTION: How do you find the slope of the line defined by the given condition of perpendicular to x=3y? I know the answer is -3 I just don't know hoe to get to it.       Log On


   

Question 322656: How do you find the slope of the line defined by the given condition of perpendicular to x=3y? I know the answer is -3 I just don't know hoe to get to it.
Answer by QH(50) About Me  (Show Source):
You can put this solution on YOUR website!
when you rewrite the given equation in slope intercept form and solve for y, you get the slope of 1/3
x=3y
3y=x
y=1%2F3x
To find the slope of a perpendicular line you use the NEGATIVE RECIPROCAL of the original slope.
1%2F3 ----> -3%2F1 or -3