What is the scale factor of the triangle dilated from opq to op’q’ from center 0 explain or show work

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.)

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Qrst is a parallelogram. determine the measure of ∠q pls