karabramhall karabramhall
  • 20-04-2017
  • Mathematics
contestada

Find the x intercept of the parabola with vertex (4,75) and y intercept (0,27)

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AlWaleed
AlWaleed AlWaleed
  • 24-04-2017
The equation of parabola with vertex (h,k) is .
Therefore, the equation of the parabola with vertex (4,75) is . When x = 0, y = 16a + 75. 
So 16a + 75 = 27 and a = -3.
The equation of parabola is .
To solve the x-intercepts, let y = 0 and solve for x:




 or 
 or 
Answer: (9,0),(-1,0) 
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