moss4129 moss4129

20-07-2017
Mathematics

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

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Banabanana Banabanana

20-07-2017

y = x² + 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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