The locus of a point equidistant from two points p(6,2) and R(4,2) is a perpendicular bisector of PR passing through?

Find the gradient of a line which is perpendicular to the line with the equation 3x + 2y + 1 = 0

What is the locus of point that is equidistant from points P(1,3) and Q(3,5)?

In the diagram, KS is a tangent to the circle centre O at R and ∠ROQ = 80o. Find ∠QRS.

Find the equation of a line parallel to y = -4x + 2 passing through (2,3)