Match each function with a key aspect of its graph.
g(x) = -4(x - 3)2 +5
vertex at (3,5)
P(x) = 4(x + 3)(x - 5)
x-intercept of 5
h(x) = 3(x - 4)(x + 5)
x-intercept of 3
f(x) = -5(x +3)2 - 4
vertex at (-3,-4)
9(x) = 5(x + 4)(x – 3)
x-intercept of 4

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