Which equation has a graph that is a parabola with a vertex at (5, 3)? A; y = (x – 5)2 + 3
B; y = (x + 5)2 + 3
C; y = (x – 3)2 + 5
D; y = (x + 3)2 + 5
the answer is D i think

Its A because when you do (x-5)=0 you add 5 to get x=5 and thats your x value and the 3 for your k is your y value

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.