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Mathematics 14 Online
OpenStudy (anonymous):

Beginning with the quadratic equation y = ax2 + bx + c, Fred calculated -b over 2a, and then plugged that number in for x to get a y. What is ONE reason he might have done this? A)to find the vertex B)to find the x-intercept C)to find the y-intercept D)to find the parabola's orientation

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