bewellplus.gsu.edu
mhjmomo mhjmomo
  • 07-04-2015
  • Mathematics
Answered

Write this in y=ax^2+b form:


y=(x-5)^2 - 2

Verified Answer :

iGreen
iGreen iGreen
  • 07-04-2015

Expand (x - 5)^2

(x - 5)^2 = (x - 5)(x - 5)

Multiply all the terms in the first parenthesis to all the terms in the 2nd:

x x = x^2
x -5 = -5x
-5 x = -5x
-5 -5 = 25

So we have:

x^2 - 5x - 5x + 25

Combine like terms:

x^2 - 10x + 25

Plug it back in:

y = (x - 5)^2 - 2

y = x^2 - 10x + 25 - 2

Combine like terms:

y = x^2 - 10x + 23

Answer Link
konrad509
konrad509 konrad509
  • 07-04-2015

\(y=(x-5)^2-2\\ y=x^2-10x+25-2\\ y=x^2-10x+23\)

Answer Link

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