The graph below describes the relationship between total sales and the number of sale items in certain stores. Based on the line of best fit, predict total sales when the number of sale items is 18.
A.$109
B.$150
C.$200
D.$250

To diagonalize an nxn matrix a means to find an invertible matrix p and a diagonal matrix d such that a pdp d p ap or [1 3 dh epap 3 let a=-3 -5 -3 3 3 1 step 1: find the eigenvalues of matrix a "2's" step 2: find the corresponding eigenvectors of a step 3: createp from eigenvectors in step 2 step 4 create d with matching eigenvalues.