In the graph y=2x-7 is different from the graph y=2x because -7 shows where you are suppose to start in the graph (the starting point), they are parallel from each other they are the same because they are both a straight line
The graphs have the same slope (2) and are parallel
The difference is the y intercept
y = 2x has as y intercept of 0
where y = 2x-7 has a y intercept of -7
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