Assume That the Elevation E , in Feet, of a Sag

question 72

Multiple Choice

Assume that the elevation E , in feet, of a sag in a proposed route is given by E(x) =0.000036x²-0.29+1300 , where x represents the horizontal distance in feet along the proposed route and $0 \leq x \leq 5000$
For what x -values is the elevation 1150 feet? Round your answer to the nearest foot.

• A) x=566 ft or x=7500 ft
• B) x=556 ft or x=7510 ft
• C) x=556 ft or x=7500 ft
• D) x=566 ft or x=7510 ft

---

Definitions:

Neutral Stimulus

A stimulus that initially produces no specific response other than focusing attention.

Respondent

A person who answers or responds to something, such as a questionnaire or survey.

Formal Operational

The stage of cognitive development, described by Piaget, occurring from around age 12 and beyond, characterized by the ability to think abstractly, logically, and systematically.

Cognitive Development

The construction of thought processes, including remembering, problem-solving, and decision-making, from childhood through adolescence to adulthood.