Question

How do I put in the vertex form this equation?. Y=x^2 -6X+8

Answer 1

y = x² - 6 x + 8 = ( x² - 6 x + 9 ) - 9 + 8 =
= ( x - 3 )² - 1 
This is the vertex form of the equation and the vertex is ( 3 , -1 )