Question

Which of the following expressions shows how to rewrite 3 − 4 using the additive inverse and displays the expression correctly on a number line?

The expression 3 plus negative 4 is written on top. A number line from negative 10 to positive 10 is shown, with numbers labeled at intervals of 1. An arrow is shown from point 0 to 3. Another arrow points from 3 to 4.
The expression 3 plus negative 4 is written on top. A number line from negative 10 to positive 10 is shown, with numbers labeled at intervals of 1. An arrow is shown from point 0 to 3. Another arrow points from 3 to negative 1.
The expression 3 minus negative 4 is written on top. A number line from negative 10 to positive 10 is shown, with numbers labeled at intervals of 1. An arrow is shown from point 0 to 3. Another arrow points from 3 to negative 4.
The expression 3 minus negative 4 is written on top. A number line from negative 10 to positive 10 is shown, with numbers labeled at intervals of 1. An arrow is shown from point 0 to 3. Another arrow points from 3 to 1.

Answer 1

Answer with explanation:

The expression which we have to evaluate is,

= 3-4

=3 +(-4)

Move 4 unit left of 3, we will reach at -1.

Option B

The expression 3 plus negative 4 is written on top. A number line from negative 10 to positive 10 is shown, with numbers labeled at intervals of 1. An arrow is shown from point 0 to 3. Another arrow points from 3 to negative 1.

Answer 2

While representing 3 - 4 on the number line, from the starting point 0, we need to show an arrow to three numbers on the right.

Since - 4 is the additive inverse of 4, from the point where the first arrow pointed, we should go 4 points to the left.

Hence, the number line which shows an arrow from 0 to 3, and then from 3 to negative 1 is the correct one.