Answer:
The length of the focal width of the parabola is 1.
Step-by-step explanation:
Suppose we have a parabola with the following equation:
[tex](x - h)^2 = 4p(y - k)[/tex]
The centre is at point [tex](h,k)[/tex].
The length of the focal width is of |4p|.
In this question:
We want to place in the general format. So
[tex]y = (x+2)^2 - 3[/tex]
[tex](x+2)^2 = 1(y + 3)[/tex]
Comparing, we have that 4p = 1. So the length of the focal width of the parabola is 1.
