A Cable Is Suspended Between Two Utility Poles (The Shape $324$

question 75

Essay

A cable is suspended between two utility poles (the shape of the suspended cable is parabolic). If the poles are $324$ ft apart, and the lowest point of the cable is $18$ ft. below the top of the poles, find the parabolic equation of the suspended cable, placing the origin of the coordinate system at the vertex.

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Definitions:

Construct Validity

The degree to which a test measures what it claims, or purports, to be measuring.

Criterion Validity

The extent to which a measure is related to an outcome or criterion that it is supposed to predict.

Internal Consistency Validity

A measure of the reliability of a test or scale, indicating how well the items on the test measure the same construct or concept.

Content Validity

The extent to which a test measures all aspects of the concept or content it intends to measure.