Answer:
where are the graphs?
Step-by-step explanation:
Answer:
the answer is
9b²-3b
Step-by-step explanation:
9b-3
12 is 1 more than 11
12 is one less than 13
this ok?
Answer:

Step-by-step explanation:
Required
The equation of the ellipse
This is calculated as:

Where:
---- height
--- width
So:



(x^2 +5x+2.5^2) +4+5
(x+2.5)^2+9
vertex -2.5,9