Question

What is the equation of the line perpendicular to the line y =4/9x– 2 that passes through the point (4,3)?

Answer 1

First, get the gradient which is perpendicular to the line given using the equation
m1 x m2 = -1
where m1 is the given gradient of the line and m2 is the gradient of the line perpendicular to the given line.

Then, using the gradient equation
(y-3) / (x-4) = m2
Rearrange the equation and you'll get your line perpendicular to the given line passing through the point.