What is the eccentricity of a parabola?

If $(-1,-1)$ is the focus and $x+y+4=0$ is the directrix of a parabola,then its vertex is

If the focus of a parabola is $(0,-3)$ and its directrix is $y=3$,then its equation is

$STATEMENT-1$: The curve $y = -\frac{x^2}{2} + x + 1$ is symmetric with respect to the line $x = 1$. Because
$STATEMENT-2$: $A$ parabola is symmetric about its axis.

$A$ parabola having its axis parallel to the $Y$-axis passes through the points $(0, 2/5)$,$(4, -2)$,and $(1, 8/5)$. Which of the following points lies on this parabola?

Find the equations of the tangent and normal to the parabola $y^{2}=4ax$ at the point $(at^{2}, 2at)$.