Question

you start at (4, -1). you move right 1 unit. where do you end?

Explanation:

Step1: Recall coordinate - movement rule

Moving right on a coordinate plane changes the x - coordinate. The y - coordinate remains the same when moving horizontally.
The starting point is $(4, - 1)$. Moving right 1 unit means adding 1 to the x - coordinate.
The original x - coordinate is $x = 4$, and the new x - coordinate is $x_{new}=4 + 1$.
$x_{new}=4+1 = 5$
The y - coordinate $y=-1$ stays the same.

Answer:

$(5,-1)$