Question

Select the number line that shows that two opposite numbers have a sum of 0.

Answer 1

Answer:

D

Step-by-step explanation:

When you have two opposite numbers on a numberline, that is, a digit that has a negative value and the same digit having a positive value, when you add them together, we would have 0.

i.e. -a + b = 0

In the above options given, the numberline that shows this particular case is the numberline in option D.

In option D numberline, the sum of -1 and +1 equals zero.

Answer 2

Answer:

It's B

Step-by-step explanation:

It goes up 7 and then goes down 7 making go back to zero

It is NOT D