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Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the \( x \)-axis or touches the \( x \)-axis and tums around at each zero \( f(x)=5(x-6)(x-1)^{2} \) Determine the zero(s) The zero(s) is/are 1.6 (Type integers or decimals. Use a comma to separate answers as needed) Determine the multiplicities of the zero(s). Select the correct choice below and, if necessary, fill in the answer box(es) within your choice A. There are three zeros The multiplicity of the largest zero is The multiplicity of the other zero is (Simplify your answers ) B. There are two zeros The multipliplicitity of the the smallest zero is (Simplify your answers ) C. There is one zero The multiplicity of the zero is 2 . The multiplicity of the smallest zero is 112 points (Simplity your answer )

Ask by Gonzalez Pope. in the United States
Feb 03,2025

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Answer

The zeros are 1 and 6. The zero at 1 has a multiplicity of 2, and the zero at 6 has a multiplicity of 1.

Solution

To find the zeros of the polynomial function \( f(x) = 5(x-6)(x-1)^{2} \), we will follow these steps: 1. **Identify the factors of the polynomial**: The polynomial is already factored as \( 5(x-6)(x-1)^{2} \). 2. **Set each factor equal to zero** to find the zeros: - For the factor \( (x-6) \): \[ x - 6 = 0 \implies x = 6 \] - For the factor \( (x-1)^{2} \): \[ (x-1)^{2} = 0 \implies x - 1 = 0 \implies x = 1 \] 3. **List the zeros**: The zeros of the polynomial are \( x = 6 \) and \( x = 1 \). 4. **Determine the multiplicities**: - The zero \( x = 6 \) comes from the factor \( (x-6) \), which has a multiplicity of 1. - The zero \( x = 1 \) comes from the factor \( (x-1)^{2} \), which has a multiplicity of 2. 5. **State whether the graph crosses or touches the \( x \)-axis**: - A zero with an odd multiplicity (like \( x = 6 \)) means the graph crosses the \( x \)-axis at that point. - A zero with an even multiplicity (like \( x = 1 \)) means the graph touches the \( x \)-axis and turns around at that point. ### Summary of Results: - **Zeros**: \( 1, 6 \) - **Multiplicities**: - The multiplicity of the zero \( 6 \) is \( 1 \). - The multiplicity of the zero \( 1 \) is \( 2 \). ### Final Answers: - **Determine the zero(s)**: \( 1, 6 \) - **Determine the multiplicities**: - A. There are two zeros. The multiplicity of the smallest zero is \( 2 \) (for \( x = 1 \)), and the multiplicity of the largest zero is \( 1 \) (for \( x = 6 \)). Thus, the correct choice is **B**.

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To find the zeros of the polynomial function \( f(x) = 5(x-6)(x-1)^{2} \), we set each factor equal to zero. The first factor yields the zero \( x = 6 \), while the second factor gives \( x = 1 \). Thus, the zeros are \( 1 \) and \( 6 \). Next, we analyze the multiplicities. The factor \( (x - 1)^2 \) indicates that \( 1 \) has a multiplicity of \( 2 \) (it is repeated), while the factor \( (x - 6) \) indicates that \( 6 \) has a multiplicity of \( 1 \). Therefore, there are two distinct zeros: \( 1 \) (multiplicity 2) and \( 6 \) (multiplicity 1). At the zero \( x = 1 \), since the multiplicity is even, the graph touches the \( x \)-axis and turns around. At the zero \( x = 6 \), where the multiplicity is odd, the graph crosses the \( x \)-axis. 0, 6 (Type integers or decimals. Use a comma to separate answers as needed) There are two zeros. The multiplicity of the smallest zero is 2. The multiplicity of the largest zero is 1. When you're grappling with polynomial functions like this, it’s crucial to understand that the multiplicity of a zero influences the graph's behavior significantly. Even multiplicities create a "bounce" off the x-axis, while odd multiplicities allow the graph to pass through, quite literally crossing the line! Remember to sketch a quick graph as these properties can help visualize the function's behavior. Taking a closer look at polynomials and their properties can also be magically fascinating! You might want to dive into books or resources on polynomial functions, factoring techniques, and even calculus topics around derivatives and their relationships to polynomial graphs. It’s a journey, and each step can open up more exciting mathematical mysteries!

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