Max is analyzing the test scores he earned in his biology class. the class had 7 tests, on which he scored 85, 93, 78, 90, 88, 97, and 88.

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.