SOLUTION: I am determining whether the graphs of the two equations are perpendicular, 2x2y=5 2x+4y=9

Algebra ->  Linear-equations -> SOLUTION: I am determining whether the graphs of the two equations are perpendicular, 2x2y=5 2x+4y=9       Log On


   

Question 325208: I am determining whether the graphs of the two equations are perpendicular,
2x2y=5
2x+4y=9

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
I am determining whether the graphs of the two equations are perpendicular,
2x+2y=5
y = -x + (5/2)
slope = -1
=====================
2x+4y=9
y = (-1/2)x + (9/4)
slope = -1/2
------------------------
The product of the slopes is not -1
so the lines are not perpendicular.
=======================
Cheers,
Stan H.