SOLUTION: I'm very confused as to how to solve this problem; the example that goes with it is severely inadequate. A step-by-step-explanation would be greatly appreciated. "Solve the syst

Algebra ->  Graphs -> SOLUTION: I'm very confused as to how to solve this problem; the example that goes with it is severely inadequate. A step-by-step-explanation would be greatly appreciated. "Solve the syst      Log On


   

Question 313476: I'm very confused as to how to solve this problem; the example that goes with it is severely inadequate. A step-by-step-explanation would be greatly appreciated.
"Solve the system of equations by graphing.
5x-9y=63
5x=9y+63"
Found 2 solutions by stanbon, JBarnum:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the system of equations by graphing.
5x-9y=63
5x=9y+63
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Put the equations in slope-intercept form:
y = (5/9)x - 7
y = (5/9)x - 7
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The two equations are the same so the graphs are the same.
Let x = 0, then y = -7 giving you point (0,-7)
Let x = 9, then y = -2 giving you point (9,-2)
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Plot the two points and draw a line thru them.
graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C%285%2F9%29x-7%29
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Solution: All points of the form (x, (5/9)x-7) where x is a Real Number.
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Cheers,
Stan H.

Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
these 2 graphs are identical
5x-9y=63
-9y=-5x%2B63 divide by -9
y=%285%2F9%29x-7 both graphs use this slope-intercept line, first point: (0,-7) 2nd point:(9,-2)
draw line u will notice its identical.