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3 years ago

11

What is the x-intercept of the graph of y =x2-4x+4

1 answer:

oksano4ka [1.4K]3 years ago

4 0

  y = x² - 4x + 4
  0 = x² - 4x + 4
  0 = x² - 2x - 2x + 4
  0 = x(x) - x(2) - 2(x) - 2(-2)
  0 = x(x - 2) - 2(x - 2)
  0 = (x - 2)(x - 2)
  0 = (x - 2)²
  0 = x - 2
+ 2 + 2
  2 = x
(x, y) = (2, 0)

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