A linear function is any set of ordered pairs (x, y) that is the solution set of an equation of the form y = mx + b where m and b are number constants and m≠ 0.

c is the final answer! : )

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.

i think the answer is b.

step-by-step explanation:

not 100% sure though.