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Writing Equations of Parallel Lines

Writing Equations of Parallel Lines 1.7 - Solution

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Since the lines are parallel, we only need to determine the slope of one of them. Let's choose since this is the only line that seems to match two points with integer values. Select a pair of points on the line.

The line passes through and . Now the slope can be calculated using the two points and the slope formula.
Evaluate right-hand side
The line has the slope and because the lines are parallel,  and also have a slope equal to