To write the equation of a line in slope-intercept form, which is given by the formula \( y = mx + b \) (where \( m \) is the slope and \( b \) is the y-intercept), you need the values for the slope and the y-intercept.
If you provide me with either the slope and y-intercept, or two points through which the line passes, I can help you derive the equation. Please provide the necessary information!