Please help, apex

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations