Problem 3.1: A 220 degree angle whose vertex is at the origin and whose initial side lies along the positive x-axis has its terminal side in which quadrant? [Solution]

Problem 3.2: The point (3, -4) is in which quadrant? [Solution]

Problem 3.3: How many axes exist in the coordinate plane? [Solution]

Problem 3.4: How many coordinate planes exist? [Solution]