Math Problem Statement

The function f, of, xf(x) is continuous on its domain of open square bracket, minus, 9, comma, 9, close square bracket[−9,9] and is plotted below such that the portion of the graph on the interval left parenthesis, minus, 4, comma, 3, right parenthesis(−4,3) is hidden from view. Given that f, of, minus, 4, equals, minus, 5f(−4)=−5 and f, of, 3, equals, minus, 2, commaf(3)=−2, determine what conclusions can be drawn based on the Intermediate Value Theorem on the interval left parenthesis, minus, 4, comma, 3, right parenthesis, .(−4,3). x y Graph of f -4 3 8 -8 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Answer Attempt 1 out of 2

Since the function f, of, xf(x) is on its domain, the Intermediate Value Theorem Submit Answer

Solution

We are given that the function f(x)f(x) is continuous on the interval [9,9][-9, 9], and we are interested in applying the Intermediate Value Theorem (IVT) on the interval (4,3)(-4, 3).

Restating the problem:

  • f(4)=5f(-4) = -5
  • f(3)=2f(3) = -2
  • The portion of the graph between x=4x = -4 and x=3x = 3 is hidden.

The Intermediate Value Theorem states that if a function ff is continuous on a closed interval [a,b][a, b] and f(a)f(b)f(a) \neq f(b), then for any value NN between f(a)f(a) and f(b)f(b), there exists some c(a,b)c \in (a, b) such that f(c)=Nf(c) = N.

Applying IVT:

  • The function f(x)f(x) is continuous on the interval (4,3)(-4, 3), which implies that for any value NN between f(4)=5f(-4) = -5 and f(3)=2f(3) = -2, there must exist some c(4,3)c \in (-4, 3) such that f(c)=Nf(c) = N.
  • Since f(4)=5f(-4) = -5 and f(3)=2f(3) = -2, the IVT guarantees that the function f(x)f(x) must take every value between -5 and -2 somewhere on the interval (4,3)(-4, 3).

Conclusion:

From the Intermediate Value Theorem, we can conclude that there exists at least one value c(4,3)c \in (-4, 3) for each of the following:

  1. f(c)=4f(c) = -4
  2. f(c)=3f(c) = -3
  3. f(c)=2.5f(c) = -2.5 (or any other value between -5 and -2)

In summary, the IVT guarantees that the function takes on every value between 5-5 and 2-2 on the hidden interval (4,3)(-4, 3), even though the exact behavior of the function in this interval is not visible.

Would you like further details or have any questions?

Here are 5 related questions:

  1. What conditions are required for the Intermediate Value Theorem to apply?
  2. Can the Intermediate Value Theorem tell us how many times f(x)f(x) takes a particular value?
  3. How does continuity of f(x)f(x) affect its graph on the interval (4,3)(-4, 3)?
  4. What if the function were not continuous on (4,3)(-4, 3)? Would the IVT still apply?
  5. How does the IVT relate to finding roots of an equation?

Tip: When applying the IVT, always check that the function is continuous on the given interval.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Continuity
Intermediate Value Theorem
Functions

Formulas

-

Theorems

Intermediate Value Theorem

Suitable Grade Level

Grades 11-12