Answer:
Yes, the answer is (0,5) because that is where the lines intercect on the graph.
Answer:

Step-by-step explanation:
The vertex form of an equation of a parabola:

(h, k) - vertex
We have

We must use the formula: 

Use the distributive formula a(b + c) = ab + ac

Answer:
the mean number of siblings is 8
Step-by-step explanation:
all you have to do is look at the graph.