To determine the equation of the line given two points, we use the formula:
Let the point (3, 3) be (x₁, y₁).
Let the point (4, 3) be (x₂, y₂).
Replace the variables in the formula above with their corresponding numerical value based on the given coordinates.
Then, solve and simplify.
Therefore, the standard form of the equation of the line passing through the pair of points (3,3) and (4,3) is y = 3.