Question

Find the equation of the line passing through the point R(-3; 3)
that is perpendicular to the line passing through the points P(-2;-2)
and Q(1; 2).

Answer 1

when the two lines are perpendicular, product of their slopes are equal to -1
in a ques u have been given two points P and Q of a line , from P and Q determine slope first
after that u can determine the slope of the other line

Answer 2

after finding the slope of required line u can determine the equation of a line using slope point form
y-y1 = m (x-x1)
where m = slope and (x1,y1) = points through which the line passses