Hi there! The answer is 10 1/3
The 5 in your coordinate represents the x-coordinate. To find our y-coordinate we just fill in the coordinate in the formula. Then we get the following:
[tex]y = \frac{2}{3} \times 5 + 7 = \frac{2}{3} \times \frac{5}{1} + 7 = \frac{10}{3} + 7 = 3 \frac{1}{3} + 7 = 10 \frac{1}{3} [/tex]
Therefore, the number which is on the position of the question mark in your question is 10 1/3
