The solution set is answer A.
Answer:
D) 
Step-by-step explanation:
<u>Vertex Form of a Vertical Parabola:</u>

Vertex -> 
Axis of Symmetry -> 
Vertical Scale Factor -> 
- To turn
into vertex form, we need to complete the square on the right side - Therefore, if
, then
completes the square on the right side - This becomes

- This means that our function in vertex form is

Therefore, the vertex of the graph is
.
Answer:
Yes, because the x's do not have more than one y.
Step-by-step explanation:
x y
0 0
5 10
6 12
10 20
(That's meant to be a table). Looking at the x and y table values, you can see that none of the x's have two y's. So, this relation is a function.
Answer:
15 miles
Step-by-step explanation:
If there are 2.5 inches and 1 inch is 6 miles, then just multiply 6 by 2.5 to get 15
6*2.5=15