Using the graph shown find g2 A 1 B 1 C 25 D undefined E non

____Using the graph shown, find g(2). (A) -1 (B) 1 (C) 2.5 (D) undefined (E) none of the above

Solution

The given function y = g(x) is a multivalued function since at x = 2, y = g(2) has two values: +1 and - 1. Therefore, the correct answer is \'none of the above\' since the function is defined at x = 2 but it is not single valued.