I need help! If you don’t know the answer please do not answer

For which rational expression is -2 an excluded value of x?

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)