Since the focus is at (0, 2) and directrix is y = -2
point where both of these have the same x-value will be at (0, 2) for the focus and (0, -2) for the directrix.
The vertex will also have the same x-value so it will be (0, y).
y-value is half-way between the y-value of the focus, and the y-value of the directrix at x = 0.
Directrix y-value is -2 at x = 0 and for the focus it's 2 at x = 0.
Halfway between y = -2 and y = 2 is y = 0.
So the vertex of the parabola occurs at (0, 0).
So that's x^2 = 4ay = 4(2)y = 8y.
y = 1/8*x^2
hope it helps
Answer:
100 hours
Step-by-step explanation:
If Johnny is paid 245.00 as a one time fee for all his jobs then the total money he is paid is 2245.00
We need to separate the hourly fee from the one-time fee so we subtract 245 from 2245. This leaves us with 2000 dollars.
We know that he will be paid 20 dollars per hour so we need to divide 2000 by 20. This leaves us with 100.
<h2>Therefore Johnny worked 100 hours</h2>
Answer:
- Domain: Interval notation is
![(-3, 4]](https://tex.z-dn.net/?f=%28-3%2C%204%5D)
, set builder is 
- Range: Interval notation is
, set builder is 
Step-by-step explanation:
The domain is the set of x-values and the range is the set of y-values.
You see how many times 4 can go into 25 witch is 6 not 7 because 7 x 4 is28 and 28is bigger than25 so the answer is and 1/4 is25 cence so the answer is 4.25
You didn’t give answer choices, so I would say it would probably be;
50/x Or some other variable.
If you aren’t clear on what a variable is, it’s a letter that represents an unknown factor or numerical value in an expression.
If you aren’t aware of what 50 is divided by, my guess is you’d use a variable to state this.
So your answer should be 50/*variable*
In my example I used x, but your answer might use another letter.
I hope this helps, and I’m sorry if I’m wrong.
Good luck. :))
