Answer:
[tex]N=2Z-11[/tex]
[tex]\begin{array}{cc}\text{Zac's score}&\text{Natan's score}\\ 6&1\\7&3\\8&5\\9&7\end{array}[/tex]
Step-by-step explanation:
Nathan's score is 11 less than 2 times Zac's score.
Let Z points be Zac's score and N points be Natan's score. then
2 times Zac's score = 2Z
11 less than 2 times Zac's score = 2Z -11
So, N = 2Z - 11
1. If Z=6, then [tex]N=2\cdot 6-11=12-11=1[/tex]
2. If Z=7, then [tex]N=2\cdot 7-11=14-11=3[/tex]
3. If Z=8, then [tex]N=2\cdot 8-11=16-11=5[/tex]
4. If Z=9, then [tex]N=2\cdot 9-11=18-11=7[/tex]
Thus, four other possibilities are
[tex]\begin{array}{cc}\text{Zac's score}&\text{Natan's score}\\ 6&1\\7&3\\8&5\\9&7\end{array}[/tex]