zaynwich zaynwich
  • 23-05-2018
  • Mathematics
contestada

What is the value of h when the function is converted to vertex form?

What is the value of h when the function is converted to vertex form class=

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gmany
gmany gmany
  • 23-05-2018
[tex]f(x)=ax^2+bx+c\\\\h=\dfrac{-b}{2a};\ k=f(h)[/tex]

We have:
[tex]h(x)=x^2-8x+14\\\\a=1;\ b=-8;\ c=14[/tex]

Substitute:
[tex]h=\dfrac{-(-8)}{2\cdot1}=\dfrac{8}{2}=4[/tex]

Answer Link
altavistard
altavistard altavistard
  • 23-05-2018
Completing the squqre:

h(x) = x^2 - 8x + 14  =  x^2 - 8x + 16 - 16 + 14  =  (x-4)^2 - 2

Here h=4 and k = -2.
Answer Link

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