18 points for the two urgent will mark brainliest

1. a=5,h=0,k=0

2. None of the choices are correct

Step-by-step explanation:

1. The function given is:

We can rewrite this in vertex form as: .

Comparing this to , we have a=5,h=0 and k=0.

The first choice is correct

2. The function given is:

This can be rewritten in the vertex form as:

Comparing this to , we have a=1,h=0 and k=-5.

Since 'a' is positive, the parabola opens upwards, and has its vertex at (h,k)=(0,-5), and line of symmetry at x=0.

Based on this, the correct choice is none of the choices are correct