We consider the linear map $\varphi_Z:\mathbb{R}^n\to\mathbb{R}^m$ given by $\varphi(x)=Z\cdot x$.
Here, $Z$ is a given matrix.
Moreover, we are given ordered bases $A=(a_1,\ldots,a_n)$ of $\mathbb{R}^n$ and $B=(b_1,\ldots,b_m)$ of $\mathbb{R}^m$.
You should now compute the matrix $M^A_B(\varphi_Z)$ which represents $\varphi_Z$ w.r.t. the basis $A$ and $B$, respectively.
After hitting "Update" you will see the result so that you can check with what you got.
At the same time, a new exercise is generated.