Exercise 27 Page 375

Next, we find 2 on the y-axis and follow this grid line until it collides with the grid line from our x-coordinate. The y-coordinate 2 tells us to move 2 units up from the origin — the positive vertical direction.

The point ( -1, 2) lies on the point at which these two grid lines intersect. Now we want to describe the location of Point L. Recall what we know about the quadrants of a coordinate plane. The coordinate plane is divided into four quadrants by the x- and y-axes.

Point L has negative x-coordinate and positive y-coordinate. The quadrant where the x-coordinate is negative and y-coordinate is positive is the second quadrant, or Quadrant II. Therefore, the point is located in Quadrant II.