anonymous
  • anonymous
Find the vertex for the equation: y = 3x2 + 18x + 30 (-3, 3) (-3, -51) (3, 111)
Mathematics
schrodinger
  • schrodinger
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terenzreignz
  • terenzreignz
If your quadratic equation is of the form \[y = ax^{2} + bx + c\] Then the x=value of your vertex is given by the formula \[-\frac{b}{2a}\]
terenzreignz
  • terenzreignz
And to find the y-value, either you plug in what you got for the x-value, or follow this formula \[\frac{4ac-b^{2}}{4a}\]
anonymous
  • anonymous
ok thanks, I see!!

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