Practice problem
If we multiply the first row by 222 and the third row by 13\frac{1}{3}31 , what is the resulting matrix?
[−2414331212−1]\begin{bmatrix} -2 & 4 & 1 \\ 4 & 3 & 3 \\ 12 & 12 & -1 \end{bmatrix}−2412431213−1
[−28623924−1]\begin{bmatrix} -2 & 8 & 6 \\ 2 & 3 & 9 \\ 2 & 4 & -1 \end{bmatrix}−22283469−1
[−28643324−1]\begin{bmatrix} -2 & 8 & 6 \\ 4 & 3 & 3 \\ 2 & 4 & -1 \end{bmatrix}−24283463−1
[−243239212−3]\begin{bmatrix} -2 & 4 & 3 \\ 2 & 3 & 9 \\ 2 & 12 & -3 \end{bmatrix}−222431239−3
Type a concept, like “slope” or “photosynthesis”.