If x2 + mx + m is a perfect-square trinomial, which equation must be true? A. x2 + mx + m = (x – 1)2
B. x2 + mx + m = (x + 1)2
C. x2 + mx + m = (x + 2)2
D. x2 + mx + m = (x + 4)2

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.

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the answer is 1/4

step-by-step explanation:

answer: what in the world is this

step-by-step explanation: