A given line has the equation 2x + 12y = −1. What is the equation, in slope-intercept form, of the line that is perpendicular to the given line and passes through the point (0, 9)?
The perpendicular line that passes the line with the
equation 2x + 12y = -1 at point (0, 9) has the equation of y = 6x + 9. The
slope of the perpendicular line that will pass a certain line will has the
negative reciprocal of the slope of that line.