Question 632762
Use the graph to determine whether each system has no solution, one solution, or infinetly many solutions..
1. Y=x-1
Y=-x+1
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These are straight lines, so you need 2 points.
y = x-1
Pick 2 values for x and find y.
Plot the 2 points.
Draw a line thru them.
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The intersection (if any) is the solution.
Do the others the same way.
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2. X-y=-4
Y=x+4
3. Y=x+4
2x-2y=2
4. Y=2x-3
2x-2y=2