Notes:
- The equation for a horizontal line with y-intercept is y = k
- ex. y = 3
- The equation for a vertical line with x-intercept is x = k
- ex. x = 3
- In standard form, the equation to find the slope is – A/B
- If slopes are negative reciprocals of each other, they are perpendicular
- If slopes are equal, the lines are parallel
Horizontal and Vertical Lines
Understanding Parallel and Perpendicular Lines
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