Question

A biologist took a count of the number of fish in a particular lake and recounted the lake’s population of fish each of the next six weeks.
Week 0 1 2 3 4 5 6
Population 350 353 382 437 518 625 758

Find a quadratic function that models the data as a function of x, the number of weeks. Use the model to estimate the number of fish at the lake on week 8.

(1 point)


•P(x) = 13x2 – 10x + 350; 917 fish
•P(x) = 13x2 – 10x + 350; 1,102 fish
•P(x) = 18x2 + 10x + 300; 1,252 fish
•P(x) = 18x2 + 10x + 300; 1,532 fish

Answer 1

Can someone help me with this

Answer 2

Start by plugging 0 into the equation and see which ones give you 350 back. Those equations are the right ones.

Answer 3

ok

Answer 4

Once you find the right equation(s) plug 8 in for x and that will give you the second answer

Answer 5

ok

Answer 6

so is the answer d

Answer 7

P(x) = 18x2 + 10x + 300; 1,532 fish??

No thats not right?

explain your reasoning

Answer 8

Ok wait now I see my problem...The answer is b

Answer 9

Correct!

Answer 10

thanks