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15 February, 19:14

Use the quadratic equation y=x2+3x-10. where does the vertex of the parabola lie

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  1. 15 February, 19:19
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    y = x ² + 3x - 10

    a=1 b=3 c=-10

    x = - b/2a = - 3/2 = - 1.5

    y = (-1.5) ² + 3 (-1.5) - 10 = 2.25 - 4.5 - 10 = - 12.25

    (-1.5, - 12.25) ← vertex of the parabola
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