Question

A relationship between x and y is defined by the equation -2x + y = 1- where x is the input and y is the output. Which statement(s) about the graph of the relationship are true?

Select all that apply.
A. It is non linear.
B. It increases at a constant rate.
C. It decrases at a constant rate.
D. It has an input of -2 with a corresponding output of 6.

Answer 1

-2x + y = -1

or y = 2 x - 1

Since y = m x + b is a straight line it is linear with m = 2

Thus it must increase at a constant rate is the only true statement