SOLUTION: please help. solve the system below graphically. indicate method you use to plot the lines. show all your wouk. x = 2y 2x + y = -5 b. check by substituting the answer back into

Algebra ->  Graphs -> SOLUTION: please help. solve the system below graphically. indicate method you use to plot the lines. show all your wouk. x = 2y 2x + y = -5 b. check by substituting the answer back into      Log On


   



Question 503318: please help.
solve the system below graphically. indicate method you use to plot the lines. show all your wouk.
x = 2y
2x + y = -5
b. check by substituting the answer back into the original equations.
thank you

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
x = 2y---------------1
2x + y = -5------------2
equation1
when x= 0 y= 0 ( 0 , 0 )
when y = 0 x= 0 ( 0 , 0 )
Equation 2
when x= 0 y= -5 ( 0 , -5 ) -5
when y = 0 x= -2.5 ( -2.5 , 0 )


The solution is (-2,-1)
x=2y
-2=-1*2
-2=-2
...
2x+y=5
2*-2+(-1)*1=-5
-5=-5