Which second degree polynomial function has a leading coefficient of negative 1 and root 4 with multiplicity 2 ?
A
f of x is equal to negative x squared minus 8 x minus 16B
f of x is equal to negative x squared plus 8 x plus 16C
f of x is equal to negative x squared minus 8 x plus 16D
f of x is equal to negative x squared plus 8 x minus 16