Exam 2: Polynomial and Rational Functions

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Select the graph of the function y=(x/3)25y = ( x / 3 ) ^ { 2 } - 5 . Compare the graph of this function with the graph of y=x2y = x ^ { 2 }

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Use long division to divide. (6x312x2+9x18)÷(3x3)\left( 6 x ^ { 3 } - 12 x ^ { 2 } + 9 x - 18 \right) \div ( 3 x - 3 )

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Find the domain of xx in the expression. Use a graphing utility to verify your result. 2516x2\sqrt { 25 - 16 x ^ { 2 } }

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Write the standard form of the equation of the parabola that has a vertex at (8,3)( - 8,3 ) and passes through the point (5,5)( 5 , - 5 )

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Use long division to divide. (x4+7x3+12x2x3)÷(x+3)\left( x ^ { 4 } + 7 x ^ { 3 } + 12 x ^ { 2 } - x - 3 \right) \div ( x + 3 )

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Perform the operation and write the result in standard form. 41+i51i\frac { 4 } { 1 + i } - \frac { 5 } { 1 - i }

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Select the graph of the function and determine the zeros of the polynomial. f(x)=x34xf ( x ) = x ^ { 3 } - 4 x

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Select the correct graph of the following function. f(x)=x22x+1f ( x ) = \frac { x ^ { 2 } } { 2 x + 1 }

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Select the graph of the function and determine the zeros of the polynomial. f(x)=x34x2f ( x ) = x ^ { 3 } - 4 x ^ { 2 }

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Determine the equations of any horizontal and vertical asymptotes of f(x)=x2+5x+6x3+3x2x3f ( x ) = \frac { x ^ { 2 } + 5 x + 6 } { x ^ { 3 } + 3 x ^ { 2 } - x - 3 }

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Use synthetic division to divide. (8+5x314x+17x2)÷(x+4)\left( - 8 + 5 x ^ { 3 } - 14 x + 17 x ^ { 2 } \right) \div ( x + 4 )

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Select the correct graph of the following function. f(x)=5x3+x28x+2f ( x ) = 5 x ^ { 3 } + x ^ { 2 } - 8 x + 2

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 If x=3 is a root of x3x23x+3=0\text { If } x = \sqrt { 3 } \text { is a root of } x ^ { 3 } - x ^ { 2 } - 3 x + 3 = 0 , use synthetic division to factor the polynomial completely and list all real solutions of the equation.

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Simplify the complex number and write it in standard form. 1(6i)3\frac { 1 } { ( 6 i ) ^ { 3 } }

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Simplify the rational expression, x4+5x311x233x18x2+2x+1\frac { x ^ { 4 } + 5 x ^ { 3 } - 11 x ^ { 2 } - 33 x - 18 } { x ^ { 2 } + 2 x + 1 } , by using long division or synthetic division.

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Write the complex conjugate of the complex number. Then multiply the number by its complex conjugate. 25\sqrt { - 25 }

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Select the graph of the function y=x21y = x ^ { 2 } - 1 . Compare the graph of this function with the graph of y=x2y = x ^ { 2 }

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Use the position equation s=14t2+v0t+s0s = - 14 t ^ { 2 } + v _ { 0 } t + s _ { 0 } , where SS represents the height of an object (in feet), V0V _ { 0 } represents the initial velocity of the object (in feet per second), S0S _ { 0 } represents the Initial height of the object (in feet), and tt represents the time (in seconds). A projectile is fired straight upward from ground level (s0=0)\left( s _ { 0 } = 0 \right) with an initial velocity of 112112 feet Per second. At what instant will it be back at ground level?

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Select the graph of the function y=3x2y = - 3 x ^ { 2 } . Compare the graph of this function with the graph of y=x2y = x ^ { 2 }

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Solve the inequality and graph the solution on the real number line. x2+x12x0\frac { x ^ { 2 } + x - 12 } { x } \geq 0

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