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Mrs.Marusa

  • 3 years ago

Find the vertex of the parabola. y = x2 - 16x + 73

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  1. Loujoelou
    • 3 years ago
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    To find the x-value of the vertex, we will use the formula x=-b/2a. x=+16/2(1) ; x=16/2; x=8 Now that we found this x-value we pluck back into the equation and figure out why y is. 8^2-16(8)+73= 64-128+73=-64+73= y=9. Now we have found the vertex of the parabola, (8,9)

  2. No-data
    • 3 years ago
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    Can you explain the reason we use that formula.

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