Determine if the equations represent lines that are parallel, perpendicular, or neither.
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Here is a graph. When you use a graphing calculator, it isn't always necessary to solve for y.
Note different colors are used for the different problems. Problem 2 has a dashed line, as described by "Remember, ...".
Note different colors are used for the different problems. Problem 2 has a dashed line, as described by "Remember, ...".