Geom4-6
- 1. Geom46.notebook November 15, 2011 Please be seated and ready to begin when the bell rings. Thank you! Agenda for the day: 1. vocabulary quiz 2. review activity 3. finish 4.6 4. questions on homework Visual interpretation of slope: Positive Slope: 6 y 5 4 3 2 1 x 6 5 4 3 2 1 0 1 2 3 4 5 6 1 2 3 4 5 6 1
- 2. Geom46.notebook November 15, 2011 Visual interpretation of slope: Negative Slope: 6 y 5 4 3 2 1 x 6 5 4 3 2 1 0 1 2 3 4 5 6 1 2 3 4 5 6 Visual interpretation of slope: Zero Slope: 6 y 5 4 3 2 1 x 6 5 4 3 2 1 0 1 2 3 4 5 6 1 2 3 4 5 6 2
- 3. Geom46.notebook November 15, 2011 Visual interpretation of slope: No Slope: 6 y 5 4 3 2 1 x 6 5 4 3 2 1 0 1 2 3 4 5 6 1 2 3 4 5 6 3
- 4. Geom46.notebook November 15, 2011 A few theorems about slope: • If two nonvertical lines are parallel, then their slopes are equal. • If the slopes of two nonvertical lines are equal, then the lines are parallel. • If two lines are perpendicular and neither is vertical, each lines slope is the opposite reciprocal of the other's. • If a line's slope is the opposite reciprocal of another line's slope, the two lines are perpendicular. homework questions?? 4