a b X a Each of Graph I and Graph II shows a trapezoidal area between a linear function and the x-axis (vertically) and between x = a and x = b (horizontally). Which of the following is a TRUE statement ? Graph I has a negative "signed area," while Graph II has a positive "signed area." Both Graph I and Graph II have a negative "signed area." Both Graph I and Graph II have a positive "signed area." Graph I has a positive "signed area," while Graph II has a negative "signed area."