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F(x) = 2x² + 4x + 5; shifts 2 units up and 3 units right.+2

User Nbkhope
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1 Answer

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11 votes

Given any quadratic function as shown below


f(x)=ax^2+bx+c

To shift left or right, then the quadratic function becomes


\begin{gathered} f(x)=a(x\pm h)^2+b(x\pm h)+c \\ \text{Where h is the shift unit to left or right} \end{gathered}

To shift the up or down, the quadratic function becomes


\begin{gathered} f(x)=a(x\pm h)^2+b(x\pm h)+c\pm k \\ \text{Where k is the shift up or down} \end{gathered}

Given the quadratic function below


f(x)=2x^2+4x+5

To shift 2 units up and 3 units right would make the fucntion becomes


\begin{gathered} f(x)=2(x-3)^2+4(x-3)+5+2 \\ f(x)=2(x-3)^2+4(x-3)+7 \\ f(x)=2(x^2-6x+9)+4x-12+7 \\ f(x)=2x^2-12x+18+4x-12+7 \end{gathered}
f(x)=2x^2-8x+13

Hence, the final answer is 2x²-8x+13

User RonnieT
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