Answer:
The change in y: -6
The change in x: +2
Explanation:
The point A is at (1, 6) this means is at x = 1 and y = 6
The point B is at (3, 0) this means is at x = 3 and y = 0
So from A to B the change in y is:
0 - 6 = -6 ⇒ the change in y is 6 units, and it is negative since the value of y decreases.
and the chanche in x is:
3 - 1 = +2 ⇒ the change in x is 2 units, and it is positive since the value of x increases.