Pls help question is on the picture

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

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.