Question

Which type of function is shown in the table below? x f(x) 1 3 2. 5 3 7 4 9 4 11

Answer 1

f(x) is NOT a function, since at x = 4, the supposed function produced two values ( that is, f(4) =9 and f(4) = 11

So, the correct answer is f(x) is not a function (last option)