Practice problem
Solve [−4213]∗[99]\begin{bmatrix}-4&2\\1&3\end{bmatrix}*\begin{bmatrix}9\\9\end{bmatrix}[−4123]∗[99]
[55120]\begin{bmatrix}55\\120\end{bmatrix}[55120]
[−1836]\begin{bmatrix}-18\\36\end{bmatrix}[−1836]
[−2442]\begin{bmatrix}-24\\42\end{bmatrix}[−2442]
[−625]\begin{bmatrix}-6\\25\end{bmatrix}[−625]
Type a concept, like “slope” or “photosynthesis”.