Answer:

Step-by-step explanation:
Hello, please consider the following.
When the parabola equation is like

The vertex is the point (h,k) and the focus is the point (h, k+1/(4a))
As the vertex is (3,-2) we can say that h = 3 and k = -2.
We need to find a.
The focus is (3,2) so we can say.

So an equation for the parabola is.

Hope this helps.
Do not hesitate if you need further explanation.
Thank you
Answer:
21/100 = .21 = 21%
Step-by-step explanation:
Answer:
d) A = π(
)
Step-by-step explanation:
area = π 
diameter = 18
radius (half of diameter) = 9
area = π 
<h2>Greetings!</h2>
Answer:
250%
Step-by-step explanation:
To find the percent increase, divide the end amount by the primary amount:
45 ÷ 18 = 2.5
Now simply multiply this value by 100:
2.5 x 100 = 250
So the percent increase is 250%!
<h2>Hope this helps!</h2>
The graph shown is not a function because points (-1,2) and (-1,0) have the same x value.