Final answer:
The origin represents the point (0, 0) on a coordinate plane. To plot the given points, start at the origin and follow the instructions for each point.
Step-by-step explanation:
The origin represents the point (0, 0) on a coordinate plane. It is where the x-axis and y-axis intersect.
To plot the point (-1, 1), start at the origin and move 1 unit to the left along the x-axis, then move 1 unit up along the y-axis.
To plot the point (1, -1.5), start at the origin and move 1 unit to the right along the x-axis, then move 1.5 units down along the y-axis.
To plot the point (2, 1/4), start at the origin and move 2 units to the right along the x-axis, then move 1/4 unit up along the y-axis.