aliyah0919 aliyah0919
  • 24-06-2018
  • Mathematics
contestada

what is the x coordinate of the vertex of the parabola who equation is y = 3x ^ 2 + 9x?

Respuesta :

jimthompson5910 jimthompson5910
  • 24-06-2018
The given equation y = 3x^2+9x is in the form y = ax^2+bx+c

Since a = 3 and b = 9, this means,
h = -b/(2a)
h = -9/(2*3)
h = -9/6
h = -3/2
h = -1.5
is the x coordinate of the vertex (h,k)

As a fraction, the answer is -3/2
In decimal form, that answer is -1.5
(use long division or a calculator to find that -3/2 = -1.5)
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SweetyPie12
SweetyPie12 SweetyPie12
  • 02-04-2020

Answer:

[tex]-1\frac{1}{2}[/tex] is your answerrrrrr

Step-by-step explanation:

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