The equation of a line in the slope-intercept form is given by:
\[ y = mx + b \]
where \( m \) is the slope and \( b \) is the y-intercept.
Given that the slope (\( m \)) is 2 and the y-intercept (\( b \)) is 7, we can substitute these values into the equation:
\[ y = 2x + 7 \]
Thus, the equation of the function is:
\[ y = 2x + 7 \]