<span>This characteristic of non-functions was noticed by I-don't-know-who, and was codified in "The Vertical Line Test": Given the graph of a relation, if you can draw a vertical line that crosses the graph in more than one place, then the relation is not a function.</span>
Answer:

Step-by-step explanation:
Where p is the distance from focus to vertex, the equation of the parabola with focus at (0, p) is ...

Your parabola has p=9, so the equation is ...

Answer:
1545.62
Step-by-step explanation:
The calculation of compound interests uses this formula:
<h2>

</h2>
Where A = total amount, P = principal or amount of money deposited, r = annual interest rate, n = number of times compounded per year and t = time in years.
So, if we plug-in the numbers of the problem we have:
<h2>

</h2>
Which gives us:

For a grand total of 1,545.62 including capital and interests.
Answer:
1 = 52
2 = 68
3 = 40
4 = 25
Step-by-step explanation:
1 = (4 + 3)^2 + (12 / 4)
7^2 + 3
49 + 3
= 52
2 = (12 x 9 - 7^2) + 9
(108 - 49) + 9
59 + 9
= 68
3 = (30 - 2) / 7 + 6^2
28 / 7 + 36
4 + 36
= 40
4 = (2 x 7 + 4^2) - 5
(14 + 16) - 5
30 - 5
= 25
Hope this helps!! Brainliest plz??
Answer:
$103.75 for 8 hours
Step-by-step explanation:
8hr * 60min = 480min (for the total trip)
480min / 30min = 16 (30 minute intervals in her trip)
If the first half hour is a $25 dollar charge then,
$25 * 1 + $5.25 * 15 = $103.75 (for 8 hours)