1. Sec. 2.2 # 12, 22, 27, 44, 46

2. 12.I like to think of slope as the change in y divided by the change in x. Below are some other ways to think of slope. Pick one or make up one of your own. Answer to # 12 slope = – 1 therefore the line falls Remember to read the line from left to right.

3. 22.Parallel lines have the same slope, perpendicular lines have slopes that are opposite reciprocals. If the slopes are not the same and are not opposite reciprocals then the lines are not parallel or perpendicular. The slope of the 1 st line is The slope of the 2 nd line is The lines are neither parallel or perpendicular.

4. 27. Final answer is 2 meter per sec.

5. 44.The rise of each ramp of the three-section ramp is The slope of each ramp of the three-sections ramp is If there were only a single-section ramp, the slope would be The slope of a single-section ramp would be 3 times as steep as the three section ramp. The benefit of the three-section ramp is that people can walk at a slope that doesn’t require so much work. It is also easier for those who use a wheelchair. Some states have laws on the slope of ramps used at stadiums.

6. 46.