anonymous
  • anonymous
Rewrite f(x) = –(x + 3)2 − 1 from vertex form to standard form
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
@triciaal @Hero
anonymous
  • anonymous
vertex form: y=a(x - h)^2+k Standard form: y = ax^2 + bx + c
anonymous
  • anonymous
so i need to plug in the numbes?

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anonymous
  • anonymous
Okay, so first thing you do is distribute the (x + 3)^2 expression. After you've distributed, multiply the expression with -1. Then, subtract -1.
anonymous
  • anonymous
im lost :/
anonymous
  • anonymous
Sorry, I think I'm explaining in a really crappy way right now. Let me reword it. So, take your vertex form expression. –1*(x + 3)^2 − 1. The first thing you want to do is simplify the term in parenthesis. Which is (x + 3)^2
anonymous
  • anonymous
F(x)=-x^2-6x-10 f(x)=x^2-6x+8 f(x)=x^2-6x-8 f(x)=x^2-8 Those are my choices btw
anonymous
  • anonymous
Okay, so first distribute. (x + 3)(x + 3).
anonymous
  • anonymous
X^2+6x+9
anonymous
  • anonymous
Plug it into the remaining parts of the equation! The equation is now –1*X^2+6x+9 − 1
anonymous
  • anonymous
Okay, so what now?
anonymous
  • anonymous
Simplify the rest of the equation. –1*X^2+6x+9 − 1 Multiply (X^2+6x+9) by -1. After you've received your answer, subtract 1 from it. That is your equation in standard form!
anonymous
  • anonymous
So it's C?
anonymous
  • anonymous
So it's C?
anonymous
  • anonymous
Nope, try again.

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