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DDD Use the graph to find the solution of  2x^{2} + 8 = 0. DDD

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DDD Find the solutions of the quadratic equation x^{2}  2x  3 = 0 using the graph. DDD

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DDD Solve the quadratic equation  4x^{2}  4x + 8 = 0 using the graph. DDD

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DDD Estimate the solution of the equation 5x^{2} = 20 using a graph. DDD

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DDD Find the solution of 2x^{2}  8 = 0 using the graph. DDD

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DDD Solve by graphing the related function of the equation  3x^{2} =  27. DDD

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DDD Solve by graphing the related function of the equation  x^{2} + 9x  20 = 0. DDD

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DDD Solve by graphing the related function of the equation  x^{2}  2x + 3 = 0. DDD

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DDD Solve by graphing the related function of the equation 5x^{2} + 7 = 52. DDD

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DDD Solve the equation  x^{2} + 4 = 0 using the graph. DDD

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DDD Use the graph to estimate the roots of the equation x^{2} + x = 2. DDD

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DDD Estimate the solution of x^{2}  x = 6 using the graph. DDD

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DDD Find the roots of the quadratic equation x^{2} + 5 = 6 using the graph. DDD

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DDD The graph of y = 3x^{2}  9x is shown. Estimate the solution of 3x^{2}  9x = 0 using the graph. DDD

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DDD Estimate the solution of 2x^{2}  x = 3 using the graph. DDD

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DDD Find the xintercepts by graphing the related function of the equation  x^{2}  4x = 3. DDD

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DDD Find the xintercepts by graphing the related function of the equation x^{2} + 3x  4 = 0. DDD

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DDD Find the roots by graphing the related function of the quadratic equation 14x^{2}  12x  2 = 0. DDD

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DDD During summer, the cable connected between two poles sagged and formed a parabola modeled by a quadratic function y = 0.00001x^{2} + 0.9, where x is the horizontal distance from the middle of the cable(in feet) and y is the vertical distance from the vertex of parabola(in feet). The cable sagged to a maximum height of 1 ft. Calculate the distance between the poles. DDD

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DDD Use the graph to find the distance between the vertices of y = ax^{2} + c and y = ax^{2}. DDD

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DDD The main suspension cable of a bridge forms a parabola that can be modeled by the quadratic function y = 0.0055x^{2} + 20 where x is the horizontal distance from the middle of the bridge(in feet) and y is the vertical distance from the road(in feet). The cable is connected to the towers at points that are 240 feet above the road. How far apart are the towers? DDD

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DDD The graph of y = 12x^{2}  2 is shown. Using the graph, estimate the solution of 12x^{2}  2 = 0. DDD

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DDD Which of the following equations has the roots shown in the graph? DDD

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DDD The graph of y =  3x^{2} + 9x is shown in the figure. Estimate the solution of  3x^{2} + 9x = 0 using the graph. DDD

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DDD The graph of y = 3x^{2}  4x  7 is shown. Estimate the solutions of 3x^{2}  4x  7 = 0 using the graph. DDD

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