HE What is the slope of the line shown in the graph? (4 points)

A coordinate plane graph is shown. Points are plotted at 0 comma 3 and 1 comma 1. The points are joined by a line.
−1
−2
negative 1 over 2
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