Question

Please help, i have to pass this!

E.J. has shown that a function, f(x), grows by 12% for every unit in the domain. What does this prove?

a.The function f(x) is an arithmetic sequence.

b.The function f(x) is a geometric sequence.

c.The function f(x) is not a sequence.

d.This does not prove anything.

2. Fiona has proved that a function, f(x), is an arithmetic sequence. How did she prove that?

a.She showed that an explicit formula could be created.

b.She showed that a recursive formula could be created.

c. She showed that f(n) ÷ f(n - 1) was a constant ratio.

d. She showed that f(n) - f(n - 1) was a constant difference.

3.Isaac keeps track of the miles per gallon his car gets per week. He has accumulated the following data:

(1, 24), (2, 24.48), (3, 24.97), (4, 25.47)

What is the common difference or ratio?

a. The common difference is 0.48.

b.The common difference is 0.50.

c. The common ratio is 0.98.

d. The common ratio is 1.02.