Question 1
What is a mathematical model in the context of functions?
Question 2
Which statement best describes a function used for modelling?
Question 3
A student uses the model $y = 2x + 5$ to describe the cost $y$ in dollars for buying $x$ notebooks. What does the $5$ represent?
Question 4
Which type of function is often used to model constant growth by a fixed percentage?
Question 5
What does a residual represent in a regression model?
