Question

you start at (-2, -1). you move down 4 units. where do you end?

Explanation:

Step1: Recall coordinate - movement rule

Moving down in a coordinate - plane changes the y - coordinate. The x - coordinate remains the same when moving vertically.
The starting point is $(-2,-1)$.

Step2: Calculate the new y - coordinate

The y - coordinate of the starting point is $y=-1$. Moving down 4 units means subtracting 4 from the y - coordinate. So, $y=-1 - 4=-5$. The x - coordinate $x=-2$ remains unchanged.

Answer:

$(-2,-5)$