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A hiker walks up and down a hill. The hill’s cross section can be modeled by the function y = – 3/4|x – 300| + 400 where x and y are measured in feet and D: [0, 600]. How far does the hiker walk?

Respuesta :

musiclover10045

Find the vertex by either graphing ( See attached picture) or setting the value in the absolute value bracket to 0:

Vertex is (300,400)

Because it is symmetrical, find the length of one side and double ot for total distance.

Using the distance formula shown on the attached picture.

Ver imagen musiclover10045