Respuesta :
While linear equations are always straight, nonlinear equations often feature curves.
Answer:
When we talk about linear patterns, we refer to those events where events are related with a linear proportion, that is, if one magnitude increases, the other one will to, or if one magnitude increases the other would decrease, and this behaviour with a linear function which is represented as a line.
So, one example of linear model would be speed, which relates distances and time in a linear behaviour, which function is
[tex]s=\frac{d}{t}[/tex]
So, if one ball has a speed of 3 meters per second, the function would be
[tex]3=\frac{d}{t}\\ d=3t[/tex]
Where [tex]t[/tex] represents the independent variable (horizontal axis) because it represents time, and [tex]d[/tex] is distance, which is a dependent variable.
On the other hand, a non linear model could be population growth, which is an exponential beahaviour. It's not represented with a linear function, that's why is not linear.
An example of a function that represents population growth is
[tex]N(t)=N_{0} e^{rt}[/tex]
Where [tex]t[/tex] is time (horizontal axis), [tex]r[/tex] is growth rate, [tex]N_{0}[/tex] is the initial population and [tex]N(t)[/tex] is the population after [tex]t[/tex] time.
A specific example is
[tex]N(t)=12e^{0.012t}[/tex]
At last, each function graph is attached, there you could see a lot better, the linear and non-linear behaviour.

