A few days ago
is there a program or an easy way to make y=x^2+6x-4 to its vertex form y-k=a(x-h)^2 plz help its for homework
is there a program or an easy way to make y=x^2+6x-4 to its vertex form y-k=a(x-h)^2 plz help its for homework
Top 1 Answers
A few days ago
Favorite Answer
It not easy, but well worth learning: completing the square
Follow these steps:
y= x^2 + 6x + 4, take 1/2 of the 6 and square it, you get 9
y = x^2 + 6x + 9 -9 +4
now we have a perfect square as x^2 + 6x + 9 = (x+3)^2
y = (x+3)^2 -5 You can now add 5 to both sides to get the form you’re seeking:
y + 5 = (x + 3)^2 That’s it!
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