26540

Firstly, we worked out the x axis.
This is how we did that:
It was going up by three each time so we multiplide the term by three but it was one to high therefore we took away one which gave us 3x-1.

Next we worked out the formular for the y axis.
this how we did it:
The numbers on the axis were going up by 1 and they were one more than the term so it would be y+1.
using the formulas the final courdinates were (59,21).