SOLUTION: I need to graph this system of equations... 3x-5y=-9 5x-6y=-8 I have been working on this problem for two days, but do not know how I could show you what I have done. Could

Algebra ->  Linear-equations -> SOLUTION: I need to graph this system of equations... 3x-5y=-9 5x-6y=-8 I have been working on this problem for two days, but do not know how I could show you what I have done. Could      Log On


   



Question 281241: I need to graph this system of equations...
3x-5y=-9
5x-6y=-8
I have been working on this problem for two days, but do not know how I could show you what I have done. Could you please tell me the necessary step to take.

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Sure, graph each line one at a time
You need two points to plot a line. Find two points that satisfy each equation, plot those points and draw the line.
The point where the two lines intersect is the 'solution'.
For me, it is always easy to use 0 as one of the coordinates.
3x-5y=-9
let x =0
3%2A0+-+5y+=+y
-5y=9
-y+=+9%2F5
y+=+-9%2F5
so one point is (0,-9/5)
Let y=0
3x-5%2A0+=+-9
3x=-9
x=-3
so another point is (-3,0)
Plot those two points and draw the line
Now use the same idea to plot the other line
5x-6y=-8
let x=0
then y = -8/6 = -4/3
(0,-4/3)
let y=0
then x = -8/5
the other point is (-8/5,0)
Plot those two and draw another line.
Then look for the point where they intersect
I bet you can do it now!
Let me know if you still have questions