What does k = in the funtion p(x)=-8x^2-64x can be written in vertex form p(x)=a(x-h)^2+k where a b and c = what Posted on March 29, 2021 | by wp What does k = in the funtion p(x)=-8x^2-64x can be written in vertex form p(x)=a(x-h)^2+k where a b and c = what