Answer:
is the correct answer.
Step-by-step explanation:
We know that vertex equation of a parabola is given as:

where
is the vertex of the parabola and
are the coordinate of points on parabola.
As per the question statement:
The parabola opens upwards that means coefficient of
is positive.
Let 
Minimum of parabola is at x = 3.
The vertex is at the minimum point of a parabola that opens upwards.

Putting value of a and h in the equation:

Formula used: 
Comparing the equation formulated above with the options given we can observe that the equation formulated above is most similar to option A.
Comparing
and
13 = 9+k
k = 4
Please refer to the graph attached.
Hence, correct option is 
Answer:
Step-by-step explanation:
6x+3 -6x =3
6x-6x= 3-3
0 = 0
Only this function is lineer.
Because it is arithmetic.
V= 3.14r^2h
10/2= r
5^2= 25
(3.14)(25)(6)
V=471
15 / 20 = 0.75. The answer is 0.75