Here are the questions at this link:
Yfrog - namei
Note that for a), the last part at the top is 4, I don't know why it came out a bit blurry.
Oh yeah and those are equal signs not minuses in a) and b) :S
Here are the questions at this link:
Yfrog - namei
Note that for a), the last part at the top is 4, I don't know why it came out a bit blurry.
Oh yeah and those are equal signs not minuses in a) and b) :S
Do you know how to multiply two matrices?
$\displaystyle \begin{bmatrix}2 \\ -4\end{bmatrix}\begin{bmatrix}x\end{bmatrix}= \begin{bmatrix}2x \\ -4x\end{bmatrix}$.
$\displaystyle \begin{bmatrix}3 & -1 \\ 2 & 0\end{bmatrix}\begin{bmatrix}x \\ y\end{bmatrix}= \begin{bmatrix}3x- y \\ 2x \end{bmatrix}$.