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Find the vertex. f(x)=2^2 - 8​
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42 votes
42 votes
Find the vertex. f(x)=2^2 - 8​

User Oleksandr Fedorenko
by
3.2k points

1 Answer

22 votes
22 votes

Answer:

(0, -√2)

Explanation:

Given :

  • f(x) = x² - 8

Finding vertex :

  • Given by (h, k)
  • h = -b/2a = 0
  • k = -D/4a
  • D = √0 - 4(1)(-8) = √32 = 4√2
  • k = -4√2/4 = -√2
  • Vertex is (0, -√2)
User Diego Borigen
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