Exam 11: Quadratic Equations and Functions

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Solve the inequality. Graph the solution set and write the solution set in interval notation. - (x+6)(x+4)≤0( x + 6 ) ( x + 4 ) \leq 0  Solve the inequality. Graph the solution set and write the solution set in interval notation. - ( x + 6 ) ( x + 4 ) \leq 0

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Solve. -The area of a square porch is 64 square feet. Find the dimensions of the porch.

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Use the square root property to solve the equation. - (x+3)2=10( x + 3 ) ^ { 2 } = 10

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Fill in the blank with one of the words or phrases listed below. quadratic formula quadratic discriminant \pm completing the square quadratic inequality (h,k) (0,k) (h,0) -The formula x=−b±b2−4ac2ax = \frac { - b \pm \sqrt { b ^ { 2 } - 4 a c } } { 2 a } is called the______

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Fill in the blank with one of the words or phrases listed below. quadratic formula quadratic discriminant \pm completing the square quadratic inequality (h,k) (0,k) (h,0) -The graph of (x−h)2( x - h ) ^ { 2 } has vertex________

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Use the discriminant to determine the number and type of solutions of the equation. - x2+5x−6=0x ^ { 2 } + 5 x - 6 = 0

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Provide an appropriate response. -Given a parabola opens downward and the vertex is located in quadrant II, determine the number of y\mathrm { y } -intercept(s).

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Solve the equation. - (x+5)2+7(x+5)+10=0( x + 5 ) ^ { 2 } + 7 ( x + 5 ) + 10 = 0

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Solve the equation. - m2+m+4=0\mathrm { m } ^ { 2 } + \mathrm { m } + 4 = 0

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Use the quadratic formula to solve the equation. - x2+14x+74=0x ^ { 2 } + 14 x + 74 = 0

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Solve. -The base of a triangle is 4 more than twice its height. If the area of the triangle is 82 square centimeters, find its base and height. Solve. -The base of a triangle is 4 more than twice its height. If the area of the triangle is 82 square centimeters, find its base and height.

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Find the vertex of the graph of the quadratic function. - f(x)=−x2−7x−3f ( x ) = - x ^ { 2 } - 7 x - 3

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Match the function with its graph. - f(x)=−x2−6x−5f ( x ) = - x ^ { 2 } - 6 x - 5

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Sketch the graph of the quadratic function. Give the vertex and axis of symmetry. - f(x)=−x2+1f(x)=-x^{2}+1  Sketch the graph of the quadratic function. Give the vertex and axis of symmetry. - f(x)=-x^{2}+1

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Solve the inequality. Graph the solution set and write the solution set in interval notation. - x2−2x≥3x ^ { 2 } - 2 x \geq 3  Solve the inequality. Graph the solution set and write the solution set in interval notation. - x ^ { 2 } - 2 x \geq 3

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Solve. - x4+25=26x2x ^ { 4 } + 25 = 26 x ^ { 2 }

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Provide an appropriate response. -Given a parabola opens upward and the vertex is located in quadrant III, determine the number of xx -intercept(s).

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Sketch the graph of the quadratic function. Give the vertex and axis of symmetry. - f(x)=−14x2f(x)=-\frac{1}{4} x^{2}  Sketch the graph of the quadratic function. Give the vertex and axis of symmetry. - f(x)=-\frac{1}{4} x^{2}

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Graph the function. Find the vertex, y-intercept, and x-intercepts (if any). - h(x)=x2−8x+16h(x)=x^{2}-8 x+16  Graph the function. Find the vertex, y-intercept, and x-intercepts (if any). - h(x)=x^{2}-8 x+16

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Fill in the blank with one of the words or phrases listed below. quadratic formula quadratic discriminant \pm completing the square quadratic inequality (h,k) (0,k) (h,0) -The process of writing a quadratic equation so that one side is a perfect square trinomial is called --------

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