Question

Katie is finding the standard form of the conic parabola. State her mistake by giving the correct vertex.

y=x^2+6x+4
y=x^2+6x+9+4
y=(x+3)^2+4

Answer 1

When she completed the square, she neglected to balance the equation:
\[y = x^2 + 6x + 4 = (x^2 + 6x + 9) + 4 - 9 = (x+3)^2 -5\]

Answer 2

ohk thnks

Answer 3

is tht the vertex?

Answer 4

@eyeh8maf is tht the vertex?

Answer 5

The vertex of a parabola in standard form of \[y = a(x – h)^2 + k\] is (h,k) so (-3,-5)

Answer 6

wat?