1) A (2; 3), B(-1; 4), C (-3;-3)

This problem requires plotting points on a coordinate plane. Here's how to do it:

• Point A (2; 3): Start at the origin (0,0). Move 2 units to the right along the x-axis (positive direction) and then 3 units up along the y-axis (positive direction).
• Point B (-1; 4): Start at the origin. Move 1 unit to the left along the x-axis (negative direction) and then 4 units up along the y-axis.
• Point C (-3; -3): Start at the origin. Move 3 units to the left along the x-axis and then 3 units down along the y-axis (negative direction).

Each of these points is marked on the graph provided in the image.