01Question 1
Easy
The number of subscribers to a newsletter increases by 6% each month. Which of the following best describes this relationship between the number of subscribers and the number of months?
Advanced Math
Quadratic and exponential functions. You evaluate them, find a minimum or a vertex, read growth and decay from a model, and work with shifts like f(x − 1).
In an exponential model, the base isn't the rate. A base of 0.9 means a 10% decrease each step, and a base of 1.06 means 6% growth.
Pick an answer to check it and see why. Practice sets also have grid-ins, where you type the answer.
Easy
The number of subscribers to a newsletter increases by 6% each month. Which of the following best describes this relationship between the number of subscribers and the number of months?
Medium
The function g is defined by g(x) = 800 · (0.9)ˣ. By what percent does g decrease for each increase of 1 in x?
Hard
A food truck owner models the daily profit, in dollars, from selling sandwiches at a price of x dollars each with the function P(x) = −20(x − 3)(x − 15), where 3 ≤ x ≤ 15. What is the maximum daily profit, in dollars, predicted by the model?
Start a set in this skill. Every answer comes with an explanation.
186 questions in the bank: 42 Easy, 90 Medium, 54 Hard.