Which statement explains how you can use a number line to determine the number that is 4 more than -9?
A Go to -9 on the number line and then move 4 units to the left.
B Go to -9 on the number line and then move 4 units to the right.
Go to 4 on the number line and then move 9 units to the right.
Go to 9 on the number line and then move 4 units to the right.