Given y=1(x4)21\displaystyle {y}=-{1}{\left({x}-{4}\right)}^{{2}}-{1}
Identify the vertex:  
Identify the y-intercept:  
Identify two other critical points on each side of the vertex:  
What is the parent function?  
Graph y=1(x4)21\displaystyle {y}=-{1}{\left({x}-{4}\right)}^{{2}}-{1} and the parent function

Clear All Draw: Parabola