Some values of x and y for functions A and B are shown in the tables below. X 0 1 2 Function A y 1 3 9 X 2 4 6 Which of the following statements is true? O Function A and function B are both linear. Function B O Function A and function B are both nonlinear. O Function A is nonlinear and function B is linear. O Function A is linear and function B is nonlinear. y 3 6 9