SOLUTION: what is the graph of x-2y=4

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Question 198657: what is the graph of x-2y=4
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
It's a line.
This is a great tool for plotting things
http://www36.wolframalpha.com/input/?i=+x-2y%3D4
If you wanted to plot the line yourself, pick an 'easy' value for x and then find the y that makes the equation true. I like to pick x=0.
0+-+2y+=+4
y+=+-2
So one point is (0, -2)
Now pick a second value. I like to pick y=0.
x+-2%2A0+=+4
x=4
So another point is (4,0).
Plot those two points and draw the line that connects them.
Anytime the equation you are given has a single power of x added/subtracted to a single power of y being set to some number, you have a line.