Question

Parker is playing a game in which the object is to obtain a 0 by adding the points scored during each round. (Graph up top ) Based on the points he scored during the first 4 rounds, what score does Parker need on the 5th round?

Answer 1

Objective:

Obtain an score of 0 after add all the scores in all the rounds

Info given:

Round 1: -9

Round 2: 3

Round 3: -8

Round 4: 2

And we want to estimate the score in round 5 in order to obtain a 0 so we can do this:

$-9+3-8+2+x=0$

Where x represent the score required for round 5 and solving we got:

$x=9+8-3-2=12$

So then the score required for round 5 is 12