Respuesta :

Step-by-step explanation:

[tex]x = 3 + t[/tex]

[tex]y = - t {}^{2} [/tex]

[tex]x - 3 = t[/tex]

[tex]y = - (x - 3) {}^{2} [/tex]

This is the answer or

[tex]y = - {x}^{2} +6x - 9[/tex]

They are both parabola with a vertex at 3,0 , facing downwards.