SOLUTION: Write the equation of a line perpendicular to 7x+9y=12 and has the same y intercept as 3x-2y=11

Algebra ->  Customizable Word Problem Solvers  -> Geometry -> SOLUTION: Write the equation of a line perpendicular to 7x+9y=12 and has the same y intercept as 3x-2y=11      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1048298: Write the equation of a line perpendicular to 7x+9y=12 and has the same y intercept as 3x-2y=11
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
The desired line must have the form 9x-7y = k, for some constant k.
Its y-intercept is numerically -k/7.
The y-intercept of the other given line is -11/2.
===> -k%2F7+=+-11%2F2 ===> k = 77/2.
===> the desired line has equation 9x - 7y = 77/2, or 18x - 14y = 77.