Enter the exponential function using t (for time) as the independent variable to model the situation. Then find the value of the function after the given amount of time. A new savings account is opened with $200 and gains 3.1% yearly for 8 years. The exponential function that models the situation is . After 8 years, the savings account has $ . , , , and .

(b) After 8 years, the savings account has $255.32

Step-by-step explanation:

Given

---- initial (i.e. when t = 0)

Solving (a): Model the situation

For growth, an exponential function is represented as:

This gives:

Solving (b): The solution to (a)

We have:

Express percentage as decimal

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

f(y)= y^2-10y+25

step-by-step explanation: