Where is the answer to the expression 3 − 6 located on a horizontal number line?

3 units to the left of 3
3 units to the right of 3
6 units to the right of 3
6 units to the left of 3

Option 4 is correct that is 6 units to the left of 3.

Step-by-step explanation:

we have been given an expression 3-6 which will gives us -3

And we have origin or zero as the center of the number line

we have numbers represented as -3,-2,-1,0,1,2,3   on number line

Hence, -3 will lie 6  units to the left of 3

Therefore, option 4 is correct.

Hope this helps! ;)