bertzy3344 bertzy3344
  • 28-05-2020
  • Mathematics
contestada

Complete the square to rewrite y = x2 + 4x - 1 in graphing form (y = (x-h)2 + k). Then, find the vertex of the parabola.

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snog
snog snog
  • 28-05-2020

Step-by-step explanation:

y = x² + 4x - 1

  = (x + 2)² - 4 - 1

  = (x + 2)² - 5

This is now written in vertex form, so the vertex is (-2, -5). Hope this helps!

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