Intermediate Algebra – Student Workbook – Second Edition 2013

Name: _____________________
Date: ________________
Mini-Lesson 2b
Function Notation: FUNCTION NOTATION is used to indicate a functional relationship
between two quantities as follows:
y = f(x)
means that
y is a function of x
Read y = f(x) as “y equals f of x”
Problem 1 YOU TRY – READING FUNCTIONS
Complete the table below. Learning to read functions using correct language and to identify
input/output quantities is very important for our work in this class. The first one is done for you.
Function Function in words Function in input/output Input Output
f(x) = 3x + 7
g(x) = 4x + 2
f of x equals three
times x plus seven
Output = 3(input) + 7 x f(x)
f (x) = 1 2 x
g(x) = 2x
3 +1
h(x) = x 2 + 1
Scottsdale Community College Page 75 Intermediate Algebra