Which function is exponential? Explain how you knew.
What is the formula for the exponential table in the previous question?
The function f(x) = 550(1.035)x models the amount of money in a certificate of deposit after x years. How much money will there be in 9 years?
The function f(x) = 125,000(0.99)x, where x is the time in years, models the population of a city. What will the population be in 6 years?
You decide to buy a used car that costs $12,000. You’ve heard that the car may depreciate at a rate of 15% per year.
Write an equation to represent the price of the car, f(x), in terms of the years since its purchase, x.
You decide to buy a used car that costs $12,000. You’ve heard that the car may depreciate at a rate of 15% per year.
Use the equation from the previous question to determine the value, rounded to the nearest dollar, of the car after 4 years.
Write an equation for the exponential function represented by this graph.
What is the range of the function shown in this graph?
What is the asymptote of this graph?
What is the domain of this graph?
What is the range of this graph?
What is the y-intercept of this graph?
When is this graph positive?
When is this graph negative?