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Find the X-intercepts for the Parabola Whose Equation Is Given.If the X-intercepts Are Irrational, Round Your Answers to the Nearest

Problemas

Find the x-intercepts for the parabola whose equation is given.If the x-intercepts are irrational, round your answers to the nearest tenth. y=-x^2+17x-72 A. (-8,0) and (-9,0) ) B. (8,0) and (9,0) C. (8,0) and (-9,0) D. There are no x-intercepts.

Roztwór

Felipe professionell · Tutor durante 6 años
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4.5 (343 Votos)

Respuesta

To find the x-intercepts of the parabola, we need to set y equal to 0 and solve for x. We can solve this quadratic equation by factoring, completing the square, or using the quadratic formula. In this case, we will use the quadratic formula: where a, b, and c are the coefficients of the quadratic equation. In our case, a = -1, b = 17, and c = -72. So, the x-intercepts are: Therefore, the correct answer is B. and .