Answer:
6s
Step-by-step explanation:
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 ...

9514 1404 393
Answer:
A f(n)=8(0.75)^n
Step-by-step explanation:
After the first bounce, the height is 8·0.75 = 6 ft. Each subsequent bounce multiplies the previous height by 0.75, so the height after n bounces is ...
f(n) = 8·0.75^n . . . . matches choice A
Step-by-step explanation:
divide all the numbers and the add about ow many number their are