To determine whether the function \( y = 3x - \sqrt{3} \) is increasing or decreasing, we can look at the coefficient of \( x \) in the function.
The function can be rewritten in its linear form as:
\[ y = 3x - \sqrt{3} \]
Here, the coefficient of \( x \) is \( 3 \), which is positive.
When the slope (the coefficient of \( x \)) is positive, the function is increasing.
Thus, the graph of the function shows that the function is increasing.
The correct answer is Option 1: increasing.