I have no idea sorry I wish I could help but!♀️
The parabola opens towards left, this means the squared term is y with negative coefficient.
The vertex is given to be the point (-1,-3). So, the general equation of the parabola will be like:

where a is any constant.
In the given options, only 1 such equation is available and that is option C.
So the answer to this question is option C
Answer:
5.10 = .17 × b
or possibly b = 5.10 × 1.17 (but go with the first one)