# What is the concavity of a linear function?

##### 1 Answer

Jun 10, 2018

Here's an approach...

#### Explanation:

Let's see...

A linear is in the form

We can find the concavity of a function by finding its double derivative (

Let's do it then!

So this tells us that linear functions have to curve at every given point.

Knowing that the graph of linear functions is a straight line, this does not make sense, does it?

Therefore, there is no point of concavity on the graphs of linear functions.