The number of TV channels that the average U.S. home receives has been soaring in recent years.

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The number of TV channels that the average U.S. home receives has been soaring in recent years. The function t(x) = 0.16x2 + 0.46x + 21.36 can be used to estimate this number, where x is the number of years after 1985 (Source: Nielsen Media Research, National People Meter Sample). Use this function for Exercise.
a. In what year did the average U.S. household receive 130 channels?
b. In what year did the average U.S. household receive 50 channels?
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College Algebra Graphs and Models

ISBN: 978-0321845405

5th edition

Authors: Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen, Judith A. Penna

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