Which of the following does not describe the graph of the parent function of a quadratic equation? A. The graph has it vertex at the orgin
B. The graph is a parabola that opens upward
C. The graph has the x-axis as its line of symmetry
D. The graph has a minimum

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