What type of function is f (x) = 2x + 3

It is a positive linear function.

Step-by-step explanation:

If you were to graph the equation, it would show up as a diagonal line raising from the negative end of the graph to the positive end. This is because it contains a positive number being multiplied by x, making the function positive, and it contains no exponent, making it linear.

The type of function is a positive linear