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Eetermine the equetion of the fuaction ater the given transformation of the parent function: \( f(x)=x^{4} \) reflected ever the \( x \)-axts and translated 1 unit left and 6 units up \( \begin{array}{lll}\text { A. } f(x)=-x^{4}-1 & \text { B. } f(x)=-(x+1)^{4}+6 & \text { C. } f(x)=-(x-1)^{4}+6\end{array} \) \( \begin{array}{ll}\text { D. } f(x)=(x-1)^{4}+6 & \text { E. None of These }\end{array} \)

Ask by Klein Stanley. in the United States
Jan 23,2025

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Tutor-Verified Answer

Answer

The transformed equation is \( f(x) = -(x + 1)^4 + 6 \).

Solution

To determine the equation of the transformed function based on the given transformations of the parent function \( f(x) = x^4 \), let's break down each transformation step by step: 1. **Reflection over the \( x \)-axis:** - Reflecting the graph over the \( x \)-axis changes the sign of the function. - \( f(x) = -x^4 \) 2. **Translation 1 unit to the left:** - Translating the graph 1 unit to the left involves replacing \( x \) with \( x + 1 \). - \( f(x) = -(x + 1)^4 \) 3. **Translation 6 units up:** - Moving the graph 6 units up involves adding 6 to the function. - \( f(x) = -(x + 1)^4 + 6 \) Combining all these transformations, the final equation of the transformed function is: \[ f(x) = -(x + 1)^4 + 6 \] **Answer:** **B.** \( f(x) = -(x+1)^{4} + 6 \)

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The Deep Dive

To transform the parent function \( f(x) = x^4 \), we start by reflecting it over the \( x \)-axis. This gives us \( f(x) = -x^4 \). Next, we translate the function 1 unit to the left, which involves replacing \( x \) with \( x + 1 \). Thus, we have \( f(x) = -(x + 1)^4 \). Finally, translating it 6 units up means we add 6 to the function: \( f(x) = -(x + 1)^4 + 6 \). Hence, the correct transformation is represented by option B. Considering the history of polynomial functions, the fourth degree is fascinating because it reflects the complexities of shapes described by quartics. These functions were studied in ancient times, leading to insights into symmetry and roots. Reflecting functions, such as over the x-axis, can fundamentally alter their graphical behavior, showcasing the ebb and flow of mathematical explorations! In terms of practical applications, understanding function transformations is crucial in fields like physics and engineering. For instance, when modeling the trajectory of a projectile (like a basketball), adjusting the function's vertex or orientation can predict the path of the ball effectively. This hands-on knowledge helps visualize real-world problems through numeric equations, making mathematics both a tool and a language for the universe!

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