ksweetpea2001org4nt ksweetpea2001org4nt
  • 20-01-2020
  • Mathematics
contestada

What are the coordinates of the maximum or minimum value for the graph of the function x² - 4x +7 = y?
(-2, 3)
(2, -3)
(-2, -3)
(2, 3)

Respuesta :

kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 31-01-2020

Answer:

The vertex is (2,3)

The minimum value is 3

Step-by-step explanation:

The given function is [tex]y=x^2-4x+7[/tex]

We complete the square to obtain the vertex form of the function.

[tex]y=x^2-4x+4-4+7[/tex]

[tex]y=(x-2)^2+3[/tex]

The vertex is (2,3)

The coefficient of the quadratic term is >0 therefore the vertex is the minimum point.

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