Quadratic matrix is:The matrix of a quadratic form is a symmetric matrix. A quadratic form has no cross-product terms if and only if the matrix of the quadratic form is a diagonal matrix. The principal axes of a quadratic form xTAx are eigenvec- torsofA.

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.

chicken chicken chicken

step-by-step explanation:

table 3 represents a direct variation function. : )