To determine the equation of the line given two points, we use the formula:
[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]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.
[tex]y-3=\frac{3-3}{4-3}(x-3)[/tex]Then, solve and simplify.
[tex]y-3=\frac{0}{1}(x-3)[/tex][tex]y-3=0[/tex][tex]y=3[/tex]Therefore, the standard form of the equation of the line passing through the pair of points (3,3) and (4,3) is y = 3.