Respuesta :

fieryanswererft

For the function: y = x² + 4

  • y intercept: (0, 4)
  • x intercept: None
  • vertex: (0, 4)

For the function: x² - 4

  • y intercept: (0, -4)
  • x intercept: (-2, 0) and (2, 0)
  • vertex: (0, -4)

For the function: 1 - x²

  • y intercept: 1
  • x intercept: (1, 0) and (-1, 0)
  • vertex: (0, 1)

Conclusion:

green line = x² + 4;  blue line = x² - 4; black line = 1 -x²

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Answer:

See below ~

Step-by-step explanation:

Equation of Graph A :

  • No x-intercepts
  • Y-intercept at (0, 4)
  • y = x² + 4

Equation of Graph B :

  • x-intercepts at (-2, 0) and (2, 0)
  • y = (x - 2)(x + 2)
  • y = x² - 4

Equation of Graph C :

  • opens downwards ⇒ coefficient of x² is -ve
  • x-intercepts at (-1, 0) and (1, 0)
  • y = - (x + 1)(x - 1)
  • y = -x² + 1
  • y = 1 - x²

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