Practice problem
What equations are given by this matrix? [123∣4234∣5345∣6]\begin{bmatrix} 1&2&3&|&4\\ 2&3&4&|&5\\ 3&4&5&|&6 \end{bmatrix}123234345∣∣∣456
x+2y+3z=4x+2y+3z=4x+2y+3z=4
x+y+z=1x+y+z=1x+y+z=1
2x+3y+4z=52x+3y+4z=52x+3y+4z=5
2x+3y+4z=62x+3y+4z=62x+3y+4z=6
x+3y+5z=6x+3y+5z=6x+3y+5z=6
3x+4y+5z=63x+4y+5z=63x+4y+5z=6
Type a concept, like “slope” or “photosynthesis”.