Question

Which of the following equations is of a parabola with a vertex at (3, 0)?
A. y=(x-3)^2
B. y=(x+3)^2
C. y=x^2 -3
D. y=x^2 +3
Parabola is the "U" shape on the gragh, right?

Answer 1

hint :y(vertex)=0
that mean
if you put x_vertex ---> y_vertex=0