if you're good at parabolas please help meeeee
Find the equation of the following parabola

Answer:
Step-by-step explanation:
it is symmetric about y-axis and its axis is x=0
and vertex is (0,2)
so parabola is y=a(x-0)²+2
(2,4) lies on it.
4=a(2)²+2
4a=2
a=1/2
so y=1/2 x²+2