Percy plotted the points (5,6)

Answer:
1,6 and 6,6
Step-by-step explanation:
since they are on the same y-axis, changing the x-value shouldn't matter.
Answer:
any number with the y-axis remaining 6
for example: 1,6 ; 3,6 ; 6,6 ; 7,6 ; and so on until the grid ends.
Step-by-step explanation:
any points with the same y-axis will be on the same line.