Is #f(x) = 2 - 2/x^6# a function? Algebra Expressions, Equations, and Functions Vertical Line Test 1 Answer Alan P. Jun 14, 2015 #f(x) = 2 - 2/x^6# is a function; although it is not defined for #x=0# Explanation: Every possible value of #x# (excluding #x=0#, as noted in the answer) generates a single value for #f(x)#. Answer link Related questions What is Vertical Line Test? What is an example of a graph that fails the vertical line test? How do you use the vertical line test? When is a relation a function? How do you determine if the following sets of points is a function: #{(2,3), (-1, 3), (4, 7), (-1, 5)}#? Why does the vertical line test work? Does a linear graph pass the vertical line test? Does a vertical line pass the vertical line test? What is the vertical and horizontal line tests for 1-1 function? Is {(–2, 4), (5, 8), (3, 6), (5, 9)} a function? See all questions in Vertical Line Test Impact of this question 2077 views around the world You can reuse this answer Creative Commons License