The best way to do this is to try and turn the equation into points to go on the number line. So you have -2 + (-8).
The line would need to start at -2. That automatically rules out option #2 because it starts at positive 2 instead of -2.
Now, -2 + (-8). A positive and a negative equals a negative, so you can simplify the equation to : -2 -8. Now all you do is combine the two numbers and you get -10.
The line needs to end at -10. Options #1 and #3 both end at -10 but the equation also needs to be correct.
If the equation is : -2 + (8) = -10 then option #1 is the only one that has all three correct parts.
It starts at -2, ends at -10 and has the correct equation listed. Your answer is option #1
