3. Write the equations of two different quadratic relations that matcheach description.a) The graph is narrower than the graph of y = x² near its vertex.b) The graph is wider than the graph of y = -x² near its vertex.The graph opens downward and is narrower than the graphof y= = 3x² near its vertex.c)

a) The graph is narrower than the graph of y=x2 near its vertex

Answered: 3. Write the equations of two different…

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

ChapterP: Preliminary Concepts

SectionP.CT: Test

Problem 1CT

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The manager of a local restaurant is trying to decide how much money to spend on advertising. She knows that an increase in advertising spending will increase her profit, up to a point. The situation is modelled by the relation R = -0.0005(A-5000)² + 12 500, where R is the extra revenue and A is the amount spent on advertising, both in dollars. a. State the coordinates of the vertex of this parabola. b. What do the coordinates of the vertex represent in this situation? c. According to this relation, if $0 is spent on advertising, what will the revenue be? d. According to this relation, if $200 is spent on advertising, what will the revenue be?
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