Determine ƒ(–a) where ƒ(x) = x2– 6x and simplify.


ƒ(–a) = a2 – 6a

ƒ(–a) = –a2 + 6a

ƒ(–a) = a2 + 6a

ƒ(–a) = –a2 – 6a