What is the equation, in standard form, of a parabola that models the values in the table?

x= -2,0,4
f(x)= -7,3,-73
A. y = -3x2 - 3x + 4
B. y = 4x2 + 3x - 3
C. y = -4x2 - 3x + 3
D. y = -3x2 - 4x + 3

Question

What is the equation, in standard form, of a parabola that models the values in the table?

x= -2,0,4
f(x)= -7,3,-73
A. y = -3x2 - 3x + 4  
B. y = 4x2 + 3x - 3  
C. y = -4x2 - 3x + 3  
D. y = -3x2 - 4x + 3

anonymous · Answer

B is wrong

anonymous · Answer

The answer is C.

mertsj · Answer

You have three ordered pairs:(-2,-7)  (0,3)   (4,-73)

mertsj · Answer

So if you know the answer, why did you post the question?

anonymous · Answer

I didn't know the answer. no one helped so I guessed.. and I got it right. but thanks for helping.

mertsj · Answer

Do you know how to get it?