Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.1: Graphing Quadratic Functions
Problem 77PFA
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Question
The figure shows the graph of y = f(x) and its two vertical asymptotes. Use the graph to find the interval(s) on which f is decreasing.
Expert Solution
Step 1
From the graph, we have vertical asymptotes at x = -2 and x = 2 and point of maxima at y = 3
implies that,
and at (0, 3)
Step 2
From the graph observe that,
The derivative of f(x) is positive in the interval (-2, 0) and it is negative in interval (0, 2)
Hence, f(x) is increasing on interval (-2, 0) and,
f(x) is decreasing on interval (0, 2)
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