Question

you start at (0, 4). you move right 3 units. where do you end?

Explanation:

Step1: Recall coordinate - movement rule

In a coordinate - plane, moving right changes the x - coordinate. The y - coordinate remains the same when moving horizontally.
The starting point is $(0,4)$. Moving right 3 units means adding 3 to the x - coordinate.
The original x - coordinate is $x = 0$. After moving right 3 units, the new x - coordinate is $x=0 + 3=3$.
The y - coordinate $y = 4$ remains unchanged.

Answer:

$(3,4)$