Question 35: Given the function y=f(x) has the following variation table The graph of the function \(y=|f(x)|\) has how many extreme points?
From the variable table, we have the graph of the function sso y=f(x) of the form:
From the above graph, deduce the urban function y=|f(x)| by
+ Keep the part of the graph lying on the horizontal axis.
+ Symmetry the lower part of the graph through the horizontal axis and remove the lower part of the graph, we get:
Based on the city, deduce the graph of the function with 3 extreme points.