If triangle ABC is rotated 90° clockwise about the origin what are the coordinates of b?

(98 points) i need with 5 questions. answer definitions are welcomed, but not necessary.

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

Choose the point slope form of the equation below that represents the like that passes through the points (-6,4) and (2, 0)