SOLUTION: Im a beginner an lost. Which line is perpendicular to line y=2/3x + 3? 2/3 I believe is the slope and I think -2/3 is perpendicular but I don't know how to really work this ty

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Im a beginner an lost. Which line is perpendicular to line y=2/3x + 3? 2/3 I believe is the slope and I think -2/3 is perpendicular but I don't know how to really work this ty      Log On


   

Question 836281: Im a beginner an lost. Which line is perpendicular to line y=2/3x + 3?
2/3 I believe is the slope and I think -2/3 is perpendicular but I don't know how to really work this type of problem.
Do you know a good website that will simplify how to graph and solve, how to set point that are not mentioned in the problem and more
Answer by josgarithmetic(39838) About Me  (Show Source):
You can put this solution on YOUR website!
Slope of your given line is %282%2F3%29.
The product of slopes of two perpendicular lines is -1.
If the two slopes are m%5B1%5D and m%5B2%5D, and if line1 and line2 are perpendicular, then m%5B1%5D%2Am%5B2%5D=-1

You want the slope, m, so that m=-%283%2F2%29, the negative reciprocal of %282%2F3%29.

Now you want to find the y intercept.

You have no specified point to be contained! This means that all lines, y=-%283%2F2%29x%2Bb are perpendicular to y=%282%2F3%29x%2B3, for all real numbers b.

--You do not need any website. Use a good algebra textbook.--