Question 252702: convert y=x^2+6x-10 to vertex form completing the square.
convert y=x^2-9x+3 to vertex form completing the square. Answer by drk(1908) (Show Source):
You can put this solution on YOUR website! Let's start with the first equation and then repeat process for second:
(i)
STEP #1: re write the equation as
(ii)
--
STEP #2: take 1/2 middle term number and square it. put that answer in the blanks. We get
(iii)
--
STEP #3: write the left side as a quantity squared and equalling the right.
(iv)
This is vertex form.
--
--
(v) y = x^2 - 9x + 3
STEP #1: re write the equation as
(ii)
--
STEP #2: take 1/2 middle term number and square it. put that answer in the blanks. Sometimes it's easier to say [middle number/2]. Don't forget your signs. We get
(iii)
--
STEP #3: write the left side as a quantity squared and equalling the right.
(iv)
This is vertex form.
(