SOLUTION: sketch the graph of the following and determined what kind of systemi in each.if the system is consistent determine the coordinates of the following point of interaction.
2x-4y=0
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2x-4y=0
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Question 383440: sketch the graph of the following and determined what kind of systemi in each.if the system is consistent determine the coordinates of the following point of interaction.
2x-4y=0
x-y=9 Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! 2x-4y=0................1
x-y=9..................2
..
multiply (2) by -2
-2x+2y=-18
add this to (1)
2x-2x-4y2y=-18
-2y=-18
/-2
y = -18/-2
y = 9
...
plug the value of y in (2)
x-y =9
x-9 = 9
+9 +9
x= 9+9
x=(9+9)
x=18
