SOLUTION: I need to express the function f(x)=x^2-4x+8 in the form f(x)=a(x-h)^2+k and indicate the vertex. I am clueless, please help!

Algebra ->  Functions -> SOLUTION: I need to express the function f(x)=x^2-4x+8 in the form f(x)=a(x-h)^2+k and indicate the vertex. I am clueless, please help!       Log On


   

Question 665795: I need to express the function f(x)=x^2-4x+8 in the form f(x)=a(x-h)^2+k and indicate the vertex. I am clueless, please help!
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
given:
f%28x%29=x%5E2-4x%2B8+
in the form f%28x%29=a%28x-h%29%5E2%2Bk
f%28x%29+=+%28x%5E2+-+4x%29+%2B+8

the vertex:(2,4)