1. Move the points A and B such that the line is horizontal. Discuss with your partner on how the slope of this line is zero using calculations and 'easy to climb' strategy.[br][br]2. Which parameter - rise or run is zero for horizontal line?

Now position the points A and B such that the line is vertical. Discuss the answers for the questions below within your group/partner.[br][br]a) What is your rise?[br]b) What is the run?[br]c) What is the value of the slope of this line?[br]d) How can you interpret this line using 'easy to climb' strategy?[br]e) What is zero for vertical line - rise or run?[br]d) The screen shows plus and minus infinity for slope value. Can you explain this?

3. Now position the points A and B such that the line is vertical. Discuss the answers for the questions below within your group/partner.[br][br]a) What is your rise?[br]b) What is the run?[br]c) What is the value of the slope of this line?[br]d) How can you interpret this line using 'easy to climb' strategy?[br]e) What is zero for vertical line - rise or run?[br]d) The screen shows plus and minus infinity for slope value. Can you explain this?

4. Now position the points A and B such that you climb up from left to right.[br][br]a) Is rise and run positive or negative?[br]b) Try this for 'easy to climb' and 'difficult to climb lines.[br]c) Is slope positive or negative? Explain why mathematically and logically.[br][br][br]5. Now position points A and B such that you climb down from left to right.[br][br]a) Is rise positive or negative? explain why.[br]b) Is run positive or negative? explain why.[br]c) Is slope positive or negative? Explain why mathematically and logically.