The x coordinate is 4. The y coordinate is unknown.
If we substitute 4 for x in the equation, it will look as follows:
[tex]y= \frac{2}{7}*4 +3 [/tex]
Then we simply have to work it out:
[tex]y= \frac{8}{7} +3\\ y=1 \frac{1}{7}+3\\ y=4 \frac{1}{7} [/tex]
So, the second coordinate is [tex]4 \frac{1}{7} [/tex].
