Question

changing y=x^2-8x+19 from standard form to vertex form

Answer 1

Complete the square!!!

Answer 2

y = (x^2 -8x +_______) +19 - __________

(-8/2)^2 =16

y = (x^2 -8x +___16____) +19 - ____16______

y = (x-4)(x-4) + 3
y = (x-4)^2 +3