Question

//H̴̙̓͛̊ͮ̒ͣ̽E̠̦̟̝̣̥͂L̿̂͞ͅP̳̊̅ͬ ̄̊̌͌Fͪ̀A̛S̗̒ͮ̑̾T̷̜̺̜̰̻͔̃̃͑̽ͦ̎ͅ show steps if you can!!!// Write the quadratic function c(x)=x^2-8x-17 in vertex form.

Answer 1

so we must complete the square? do you know how to do that?

Answer 2

Not really, to be honest...

Answer 3

\[x^2-x-17=0\]
we bring the 17 on the right hand side by adding both sides by 17
\[x^2-8x=17\]
Now we divide the coefficient of the x term by 2 and add it to both sides
\[x^2-8x+(-\frac{ 8 }{ 2 })^2=17+(-\frac{ 8 }{ 2 })^2\]
Now we simplify this into vertex for as follows...
\[(x-4)^2=33\]
which implies
\[y=(x-4)^2-33\] is ur vertex form for that equation

Answer 4

@arachnidsGrip

Answer 5

thank you! :)

Answer 6

np :)