6 + 10x < -44 or -x-9<-19
Pls help I need shown work

Complete the equation of the live through (-1,6) (7,-2)

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.

Simplify each expression for 18, 20, and 21