This applet will let you define a vector in terms of Rise and Run and then use it to translate a given triangle.

Step 1 - Define the Rise and Run of the vector using the sliders.
What will the mapping vectors look like?
Step 2 - Show the mapping vectors by checking the box next to "Show Mapping Vectors"
What will the translation look like?
Step 3 - Show the translation (Triangle A'B'C') by checking the box next to "Show Translation"
What is the magnitude of the vector?
Describe the direction of the vector.
Step 4 - Show the magnitude of the vector by checking the box next to "Show Vector Magnitude"
What conclusions can you make about the location of Triangle A'B'C' as the magnitude and direction of the vector change?