Slope Triangle Construction

Task

Create an interactive figure that allows your students to explore the concept of slope of a line.

1.		Create a line a through two points A and B.
2.		Construct a perpendicular line b to the y-axis through point A.
3.		Construct a perpendicular line c to the x-axis through point B.
4.		Intersect perpendicular lines b and c to get intersection point C.
5.		Create a triangle ACB.
6.		Hide the labels of the triangle sides unsing the Stylebar.
7.		Calculate the rise: `rise = y(B)-y(A)`. Hint: `y(A)` gives you the y-coordinate of point A.
8.		Calculate the run: `run = x(B)-x(A)`. Hint: `x(B)` gives you the x-coordinate of point B.
9.		Insert dynamic text1: `rise =` and select rise from the list of objects on tab of the Advanced section.
10.		Insert dynamic text2: `run =` and select run from the list of objects on tab of the Advanced section.
11.		Calculate the slope of line a: `slope = rise / run.`
12.		Insert dynamic text3: `slope =` and select slope from the list of objects on tab of the Advanced section. Additionally, you may add a static text: slope=rise/run. Note: Use LaTeX formular to enter a fraction.
13.		Change properties of objects in order to enhance your construction and fix text that is not supposed to be moved.