Which function is not linear? A.
y−7=2(x+4)

B.
y=83x

C.
y=(x−3)2

D.
5x−6y=17

Step-by-step explanation:

There are no exponents or division? as is, all of these are linear because there are no exponents, division by a variable, or square roots. did you miss something writing this? these are all changing at a constant rate.

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.