Exam 4: Polynomial and Rational Functions

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Solve the variation problem. -The pressure of a gas varies jointly as the quantity of the gas (measured in moles)and the temperature and inversely as the volume of the gas. Suppose that the pressure of a particular gas is 1116 kiloPascals (kPa)when the quantity is 7 moles , the temperature is 310 Kelvin (K), and the volume is 560 cc. Find the pressure of that gas when the number of moles is 8, the temperature is 340 K, and the volume is 960 cc.

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State whether the function is a polynomial function or not. If it is, give its degree. - f(x)=x47x5f ( x ) = \frac { x ^ { 4 } - 7 } { x ^ { 5 } }

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Use the quadratic function to determine if the function has a maximum or minimum value and then find this maximum or minimum value. - f(x)=2x212x27f ( x ) = - 2 x ^ { 2 } - 12 x - 27

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Graph the function. - f(x)=x2+10x+25x2+3f ( x ) = \frac { x ^ { 2 } + 10 x + 25 } { x ^ { 2 } + 3 }  Graph the function. - f ( x ) = \frac { x ^ { 2 } + 10 x + 25 } { x ^ { 2 } + 3 }

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Use the rational zeros theorem to determine the potential rational zeros of the polynomial function. Do not find the zeros. - f(x)=2x3+2x24x+8f ( x ) = - 2 x ^ { 3 } + 2 x ^ { 2 } - 4 x + 8

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Graph the quadratic function using its vertex, axis of symmetry, and intercepts. - f(x)=x26xf(x)=x^{2}-6 x  Graph the quadratic function using its vertex, axis of symmetry, and intercepts. - f(x)=x^{2}-6 x

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Rewrite the quadratic function in standard form by completing the square. - f(x)=x28xf ( x ) = x ^ { 2 } - 8 x

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Use the intermediate value theorem to approximate the one real zero on the given interval. Round your answer to two decimal places. - f(x)=x4x37x2+5x+10;[2,3]f ( x ) = x ^ { 4 } - x ^ { 3 } - 7 x ^ { 2 } + 5 x + 10 ; [ 2,3 ]

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Find the vertical asymptotes, if any, of the graph of the rational function. - f(x)=4x9x2f ( x ) = \frac { 4 x - 9 } { x - 2 }

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Use the quadratic function to determine if the function has a maximum or minimum value and then find this maximum or minimum value. - f(x)=3x2+3x9f ( x ) = 3 x ^ { 2 } + 3 x - 9

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Graph the function using transformations. - f(x)=31(x+6)2f(x)=3-\frac{1}{(x+6)^{2}}  Graph the function using transformations. - f(x)=3-\frac{1}{(x+6)^{2}}

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Graph the function. - f(x)=xx264f(x)=\frac{x}{x^{2}-64}  Graph the function. - f(x)=\frac{x}{x^{2}-64}

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Use the Factor Theorem to determine whether x - c is a factor of f(x). - f(x)=x445x2196;x14f ( x ) = x ^ { 4 } - 45 x ^ { 2 } - 196 ; x - 14

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Use the graph of a power function and transformations to sketch the graph of the polynomial function. -Use the graph of a power function and transformations to sketch the graph of the polynomial function.  -

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Form a polynomial f(x)with real coefficients having the given degree and zeros. -Degree: 3 ; zeros: 2- 2 and 3+i3 + i .

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Find the y-intercept for the graph of the quadratic function. - f(x)=(x+2)24f ( x ) = ( x + 2 ) ^ { 2 } - 4

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Graph the polynomial function. - f(x)=x34x2+x+6f(x)=x^{3}-4 x^{2}+x+6  Graph the polynomial function. - f(x)=x^{3}-4 x^{2}+x+6

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Use the quadratic function to determine if the function has a maximum or minimum value and then find this maximum or minimum value. - f(x)=x245x+6f ( x ) = - x ^ { 2 } - \frac { 4 } { 5 } x + 6

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Write the equation of the function in the form f(x)= ax2 + bx + c. -Write the equation of the function in the form f(x)= ax2 + bx + c. -

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Sketch the graph of the polynomial function. -Sketch the graph of the polynomial function. -

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