Chapter 14.CR, Problem 12CR

To determine

a.

To find:

The coordinates A, B, and C of the triangle ABC under the translation $\left(x,y\right)\to \left(x+2,y-1\right)$ followed by the translation $\left(x,y\right)\to \left(x+1,y+3\right)$.

To determine

b.

To find:

The translation under which $\Delta A^{″}{B}^{″}{C}^{″}$ is the image of $\Delta ABC$.