Question

Which expression is modeled by the number line?
O−6+(-4)
O-6+4
06-4
O-6-(-4)

Answer 1

O-6-(-4)

Explanation:

The expression O-6-(-4) is modeled by the number line. To evaluate this expression, we simplify the parentheses first. Since -4 is inside parentheses with a negative sign in front, we change the sign to positive: O-6-(+4). Then we perform the subtraction: O-(6+4) = O-10. This means that the point O is 10 units to the right of the point (-10) on the number line.