Question

find the equation of the quadratic function with zeros -4 and 4 and vertex at (0, -16). y = x2 - 16 y = -x2 - 16 y = x2 16 y = -x2 16

Answer 1

Hello,

Answer D

y=k(x+4)(x-4)=k(x²-16)
-16=k*4*(-4)==>k=-1

y=-(x²-16)=16-x²