Pre-Calculus in Everyday Life

Still another calling rehearse for pre-calculus is when a manufacturer uses it to determine how much production (e.g., dry food, shoes, etc.) will fit into boxes of a given size.

Cohen (1996) moreover states that trigonomic exits, which of course atomic number 18 part of pre-calculus, atomic number 18 applied in many occupations and professions. Some examples include survey work, and work on boats or in a harbor where people would use these functions to do such things as describe the height of a tide or the amount of time past higher(prenominal) tide. Trigonomic functions ar also used to describe the varying voltage in an AC current as a function of time, and the path of satellites when viewed from earth. Also, curves can be applied to describe the shape of hours between sunrise and sunset, average daily temperatures, and the motion of draw on stringed instruments.

Plotting hyperbolas and parabolas is also important in pre-calculus. Cohen (1998) points out that high-flown calculations are important to people working with sound (e.g., sonic booms), or those involved in work associated with gravitational pull, or in biomedicine where they can be used to compute discordant things such as enzyme-catalyzed reactions. Parabolic calculations are used by those making mirrors that focus light such as headlights and telescopes.

Graphs, which are a very important dimension of contemporary pre-calculus, are also used in every day life. gibe to Davis, Moran and Murphy (1998) graphs are used in diver

Davis, Moran, and Murphy (1998) discuss the use of ellipses in medicine, noting that kidney stones are often destroyed with sound.

In this regard, the patient's kidney is the focus of a sound-reflecting ellipse with a sound source at the other terminate of the focus. It is noted that ellipses are now be used in the manufacture of headlights that are smaller and stronger than the older ones which are created apply parabolas.

Cohen, D. (1996).pre-calculus: A problems-oriented approach. (5th ed.) Pacific Grove, CA: Brooks/Cole.

Sullivan, M. (2001). Precalculus (6th ed.) New island of Jersey: Prentice-Hall.

se professions, although the best known professions involving the use of graphs are occasion making and special effects in movies. Further, graphs are reusable in not only presenting data but enhancing one's product. For example, government activity and advertising often make use of graphs which are stretched or chopped in such a way that they tin maximal advantage to the candidate or the product being advertised.

Davis, M., Moran, J. F. & Murphy, M. (1998). Precalculus: A problems-oriented approach. (2nd ed.) Pacific Grove, CA: Brooks/Cole.

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