Consider the line y=-9/4x+4.

Question

Consider the line y=-9/4x+4. Find the equation of the line that is perpendicular to this line and passes through the point (-9, "-5)."

Answer 1

The slope of the perpendicular is the negative reciprocal of the slope in the given line. What is that slope?

What is the slope of the perpendicular?

Use point-slope form with the slope of the perpendicual and the given point.