2. Remember that the plane is divided into four quadrants. The signs of the first and second coordinates of a point vary in the four quadrantsas indicated below. Quadrant I x>0, or x is positive y> 0, or y is positive or (+, +); Quadrant Il x0, or y is positive or (-+); y Quadrant Ill x < 0, or x is negative y0, or x is positive y < 0, or y is negative or (+,-). 3​