Question: A company's input requirements over the next four weeks for the three inputs X, Y and Z are given (in numbers of units of each input) by the matrix
The company can buy these inputs from two suppliers, whose prices for the three inputs X, Y and Z are in given (in £) by the matrix
where the two rows represent the suppliers and the three columns represent the input prices. Use matrix multiplication to derive a matrix that will give the total input bill for the next four weeks for both suppliers.