2. Functions
Modelling With Functions — Quiz
Test your understanding of modelling with functions with 5 practice questions.
Practice Questions
Question 1
In modelling with functions, what is the main purpose of choosing a function to represent data from the real world?
Question 2
Which type of function is most often used to model a situation with a constant rate of change?
Question 3
A population is modelled by $P(t)=500(1.08)^t$, where $t$ is the number of years after 2020. What does the number $500$ represent?
Question 4
What is the effect of replacing $f(x)$ with $f(x-3)$?
Question 5
If $f(x)=x^2$ and $g(x)=x+1$, what is $(f\circ g)(2)$?