Seven rational numbers are plotted on a number line. a number line starting at negative 2.5 with tick marks every 0.25 up to positive 2.5. point a is located at negative 2. point b is located at negative 1.5. point c is located at negative 0.5. point d is located at 0. point e is located at 0.5. point f is located at 1.5. point g is located at 2. which point represents the opposite of point b? a c f g