求把y=﹣16t²+64t+12化为顶点式,y=a(x+h)²-k

问题描述:

求把y=﹣16t²+64t+12化为顶点式,y=a(x+h)²-k

y=﹣16t²+64t+12
=-16(t²-4t+4)+76
=-16(t-2)²+76