Y intercept: the point where the graph crosses y axis (0, y). – – Example: Graph the equation using the X and Y intercepts only. PARALLEL AND PERPENDICULAR LINES: Parallel lines have SAME SLOPES PERPENDICULAR LINES: Perpendicular lines have SLOPES. OPPOSITE RECIPROCAL Determine whether the given lines are parallel, perpendicular or Example: neither:
Y – intercept: the point where the graph crosses y – axis (0, y). Example: Graph the equation using the X and Y intercepts only. PARALLEL AND PERPENDICULAR LINES: Parallel lines have SAME SLOPES PERPENDICULAR LINES: Perpendicular lines have OPPOSITE RECIPROCAL SLOPES. Example: Determine whether the given lines are parallel, perpendicular or neither: