Area of a triangle with a fixed base.

Topic:
Area
Follow the problems to find the area of each rectangle formed by the moving of the points. Make sure you follow each set of directions CAREFULLY!!
1. Calculate the area of triangle ABC. 2. Move point A to any new location along the equation of the line . Draw your new triangle on your paper and calculate your area. 3. If you moved Point A to the left, now move it to the right (and vice-versa). Draw your new triangle on your paper and calculate your area. 4. What did you notice about the area of triangle ABC? 5. If you move point A to the location (15, 5), what do you think will happen to the area of the triangle? Support your claim with mathematical evidence. 6. What will happen to the area of triangle ABC if you move point A to the location (x, 5)? Support your claim with mathematical evidence.