
Micah did not explain the last step correctly. You cannot cross out a term from the numerator and denominator unless it is a factor. In other words, x² needed to be multiplied and not added in order to cross it out.
A direct relationship requires a change in the same direction of both variables, answer c.
70 degree angle for T,R,Q and T,R,S is 140 degree
-2x^2-8 is the answer good luck