Complete the equation of the line whose \( y \)-intercept is \( (0,5) \) and slope is -9 . \( y=\square-\underline{\underline{x}} \)

To complete the equation of the line, we start with the slope-intercept form of a line, which is given by \( y = mx + b \), where \( m \) is the slope and \( b \) is the y-intercept. Given that the y-intercept is \( (0, 5) \) (which means \( b = 5 \)) and the slope is -9 (so \( m = -9 \)), we can plug these values in: \( y = -9x + 5 \). So, the completed equation of the line is \( y = 5 - 9x \).