Find two integers whose sum -7 and whose product is 12

How do you determine whether a relationship represented as as graph is linear or nonlinear

Through non-collinear points there is exactly one plane.

Table of values relation g values x, y 2,2 /3,5 /4,9 /5,13 which ordered pair is in g inverse? a(-2,2) b(-3,-5) c)4,9) d( 13,5)