Find the Fourth Vertex
The applet below three fixed points and one variable point. The three vertices of the parallelogram WXYZ are W(−1, −3), X(−3, 2), and Z(4, −4). Today, you will find the fourth vertex of the parallelogram, Y.
Find the slope of . slope of = You may use the formula for slope of a line, or move the vectors AB and CD around.
Now, move the vectors AB and CD around to complete the following steps: Start at Z(4, −4). Use the rise and run from Task 2 to find vertex Y. What is the coordinate pair that describes the point Y? Write in the form: (x,y).