1. The endpoints of the bottom side of a parallelogram are at A(2, 1) and B(10, 7). The other two sides both have slope 3, and length 5 cm. (a) (2 points) Provide a very neat and accurate sketch this parallelogram (use a square grid, for example, such as shown below). 15 y 10 5 0 0 5 10 X 15 (b) (4 points) Find the exact coordinates of the other two vertices, C and D, of the parallel- ogram. (c) (4 points) Find the exact length of the top side of this parallelogram. 1