Answer:
2.73
Step-by-step explanation:
You could use a calculator if your teacher/instructor lets you! :)
OR you could do long division.
Exact form: -1/10
decimal form: -0.1
Vertex form for a parabola with vertex (p,q) is

We have (p,q)=(-4,5) and another point (-3,2) so we can solve for <em>a:</em>



Putting it together,
Answer: 
We could multiply that out if we like but I won't bother.