Answer:
[tex]y=-(x+5)^{2}[/tex]
Step-by-step explanation:
This is a transformation of the function, y=x^2. Since the vertex, (h, k), is (-5, 0), you would just have to plug them in into the formula [tex]y=a(x-h)^{2} +k[/tex], with a=-1.
[tex]y=-1(x+5)^{2}[/tex]
