Writing Equations of Parallel and Perpendicular lines

Writing Equations of Parallel and Perpendicular lines

​1. Use the slope formula to find the slope between the 2 points.

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​2. Since the lines are perpendicular, m= the opposite reciprocal of the slope between the 2 points.

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​3. Use the midpoint formula to find the midpoint between the 2 points.

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​4. Use the m (step 2) and the midpoint (x, y) to find the b (y-intercept) using the equation y=mx+b.

5. Write the equation.