Question
upstudy study bank question image url

Use the given function to complete parts a) through e) below. \( r(x)=-3(x-3)^{2}\left(x^{2}-4\right) \) The \( x \)-intercept(s) is/are \( -2,2,3 \). (Type an integer or a decimal. Use a comma to separate answers as needed. At which zero(s) does the graph of the function cross the \( x \)-axis? Select the correct choice below and, if necossary, fill in the answer box to complete your choice. A. The graph crosses the \( x \)-axis at the zero(s) (Type an integer or a decimal. Use a comma to separate answers as needed) B. There are no zeros at which the graph crosses the \( x \)-axis. At which zero(s) does the graph of the function touch the \( x \)-axis and turn around? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The graph touches the \( x \)-axis and turns around at the zero(s) (Type an integer or a decimal. Use a comma to separate answers as needed. B. There are no zeros at which the graph touches the \( x \)-axis and tums around.

Ask by Rodriguez Elliott. in the United States
Feb 03,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

**1.** A. The graph crosses the x-axis at the zero(s) –2, 2. **2.** A. The graph touches the x-axis and turns around at the zero(s) 3.

Solution

To analyze the behavior of the graph of the function \( r(x) = -3(x-3)^2(x^2 - 4) \), let's first identify the multiplicities of each zero: 1. **Factorization of \( r(x) \):** \[ r(x) = -3(x-3)^2(x-2)(x+2) \] 2. **Zeros and Their Multiplicities:** - \( x = -2 \) with multiplicity **1**. - \( x = 2 \) with multiplicity **1**. - \( x = 3 \) with multiplicity **2**. 3. **Behavior at Each Zero:** - **Odd Multiplicity (1):** The graph **crosses** the \( x \)-axis. - **Even Multiplicity (2):** The graph **touches** the \( x \)-axis and **turns around**. ### a) At Which Zero(s) Does the Graph Cross the \( x \)-Axis? **Answer:** The graph crosses the \( x \)-axis at the zeros with **odd multiplicity**. - **Zeros Crossing the \( x \)-Axis:** \( -2, 2 \) **Choice A:** ``` A. The graph crosses the x-axis at the zero(s) -2, 2. ``` ### b) At Which Zero(s) Does the Graph Touch the \( x \)-Axis and Turn Around? **Answer:** The graph touches the \( x \)-axis and turns around at the zeros with **even multiplicity**. - **Zero Touching and Turning Around:** \( 3 \) **Choice A:** ``` A. The graph touches the x-axis and turns around at the zero(s) 3. ``` ### Summary of Selections: - **For crossing the \( x \)-axis:** **A.** The graph crosses the \( x \)-axis at the zero(s) **-2, 2**. - **For touching and turning around:** **A.** The graph touches the \( x \)-axis and turns around at the zero(s) **3**. **Final Answer:** **1.** A. The graph crosses the x-axis at the zero(s) –2, 2. **2.** A. The graph touches the x-axis and turns around at the zero(s) 3.

Reviewed and approved by the UpStudy tutoring team

error msg
Explain
Simplify this solution

Beyond the Answer

To determine where the graph of \( r(x) = -3(x-3)^{2}(x^{2}-4) \) intersects or touches the \( x \)-axis, we can analyze the \( x \)-intercepts and the behavior at those intercepts. The \( x \)-intercepts are given as \( -2, 2, 3 \). For a graph to cross the \( x \)-axis at a zero, that zero must be of odd multiplicity. In this case, both \( -2 \) and \( 2 \) are part of the quadratic factor \( (x^{2}-4) \) and thus have odd multiplicities. The zero \( x = 3 \) is part of the factor \( (x-3)^{2} \) and has even multiplicity, so it touches the axis and turns around. 1. A. The graph crosses the \( x \)-axis at the zero(s) \( -2, 2 \). 2. A. The graph touches the \( x \)-axis and turns around at the zero(s) \( 3 \).

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy