Question

Tell how to read the statement f(4)=16. Then interpret what it means in terms of input and output values.

​

Answer 1

f(4) = 16 is read as “The value of f at 4 is 16”. f, in this case, is a variable that represents a function. What this statement tells us is that f is some function that “maps,” or associates, the value 4 with the value 16.