Question

Check my homework?

Answer 1

@Kira_Yamato

Answer 2

Barry has been watching the geese that live in his neighborhood. The number of geese changes each week.


n f(n)
1 56
2 28
3 14
4 7


Which function best shows the relationship between n and f(n)?
f(n) = 28(0.5)n

f(n) = 56(0.5)n-1

f(n) = 56(0.5)n

f(n) = 112(0.5)n-1

Answer 3

I think the answer is D.

Answer 4

This is an exponential function where each week the number of geese decreases by 1/2.

Answer 5

I plugged in the numbers and D was the closest one I could find . . .

Answer 6

But it's wrong . . .

Answer 7

Since the initial population is 56, it must be 56(0.5)^(n-1)

In your choices, you meant the exponential function.

Answer 8

You can see, when n = 1, 56(0.5)^(n-1) = 56(1/2)^0 = 56