3. Suppose f(x) = x ^ 4 - 4x ^ 2 + 6, and g(x) = 3x ^ 3 - 8x. Prove, via the %3D %3D Intermediate Value Theorem, that the functions intersect at least twice between x = -2 and x = 4.

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Chapter3: Functions
Section3.3: Rates Of Change And Behavior Of Graphs
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3. Suppose f(x) = x ^ 4 - 4x ^ 2 + 6, and g(x) = 3x ^ 3 - 8x. Prove, via the
Intermediate Value Theorem, that the functions intersect at least twice between x
-2 and x =
%3D
4. Suppose f(x) is continuous on the interval [0,1] with 0< = f(x)< = 1 for all x.
Prove that f has a fixed point; that is, there exists a c in the interval [0,1] such that
f(c) = c. (Hint: You need to use the Intermediate Value Theorem on the function
h(x) = f(x) – x.)
Transcribed Image Text:3. Suppose f(x) = x ^ 4 - 4x ^ 2 + 6, and g(x) = 3x ^ 3 - 8x. Prove, via the Intermediate Value Theorem, that the functions intersect at least twice between x -2 and x = %3D 4. Suppose f(x) is continuous on the interval [0,1] with 0< = f(x)< = 1 for all x. Prove that f has a fixed point; that is, there exists a c in the interval [0,1] such that f(c) = c. (Hint: You need to use the Intermediate Value Theorem on the function h(x) = f(x) – x.)
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