Answer :

The addition equation to represent the problem represented on the number-line is given by [tex]-5+8=3[/tex].

The number line is a visual representation of the real numbers along a straight line. Every point on a number-line contains a real number.

The integers that we see on this number line represents the round scores of the game Luis is playing.

At the beginning of second round Luis's team has a score of -5 , but he scored 8 points in the second round.

So the addition equation for representing this particular situation is given by :

Score in round 1 + points scored by Luis in round 2= Score in round 2

So the addition equation :

[tex]-5+8=3[/tex]

To learn more about Number-line:

https://brainly.com/question/13425491

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