Bananas1234
  • Bananas1234
Use the quadratic equation y = x^2 + 3x – 10. Where does the vertex of the parabola lie?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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Bananas1234
  • Bananas1234
i got below the x-axis
dmndlife24
  • dmndlife24
Vertex formula|dw:1433280952004:dw|
dmndlife24
  • dmndlife24
The leading coefficient is a positive one so we know the vertex is the minimum point on the parabola.

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Bananas1234
  • Bananas1234
ok
dmndlife24
  • dmndlife24
a = 1 b = 3 You can plug these values in for a and b in the formula to first find the x-value of the vertex.
Bananas1234
  • Bananas1234
isn't it below?
Bananas1234
  • Bananas1234
@dmndlife24
dmndlife24
  • dmndlife24
a = 1 b = 3 (-b/2a, f(-b/2a)) (-3/2, f(-3/2)) f(-3/2) = (-3/2)^2 + 3(-3/2) - 10 = -49/4 (-3/2, -49/4) x y Decimal form... (-1.5, -12.25)
dmndlife24
  • dmndlife24
@Bananas1234

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