What is different between the first and second equations?
Function notation.
Practice makes perfect
There are two common ways to write functions:
standard notation
function notation.
Standard notation has x-values as the inputs and y-values as the outputs because those correspond to (x,y)-coordinates on a coordinate plane. Function notation also has x-values as the inputs, but it has f(x) to represent the outputs because it is read as:
f(x)= "the value of the function at x".
Therefore, f(x)=2x+10 is written in function notation.
