Question

Which of the following points is NOT on the graph of the function
f(x)=-x^2+4
A. (0, 4)
B. (1,3)
C. (2, 0)
D. (-1,3)
E. (1,5)

Answer 1

for 2,0 do I just plug into x? so it would be -2^2+4=8?

Answer 2

yes plug in the 2 for x and see if it solves for 0, remember the - sign on the x inverting y

Answer 3

the +4 shifts the graph up 4 the negative reflects about the x axis

Answer 4

does the 8 mean anything to these or would I use that to solve for 0?

Answer 5

8?