1. **State the problem:** Convert the quadratic equation $y = x^2 - 4x + 6$ into vertex form.
2. **Recall the vertex form:** The vertex form of a quadratic is $$y = a(x-h)^2 + k$$ where $(h,k)$ is the vertex.
3. **Complete the square:** Start with $$y = x^2 - 4x + 6$$
4. Factor out the coefficient of $x^2$ (which is 1 here, so no change): $$y = x^2 - 4x + 6$$
5. Take half of the coefficient of $x$, which is $-4$, half is $-2$, and square it: $$(-2)^2 = 4$$
6. Add and subtract 4 inside the equation to complete the square: $$y = (x^2 - 4x + 4) + 6 - 4$$
7. Rewrite the trinomial as a perfect square: $$y = (x - 2)^2 + 2$$
8. **Final vertex form:** $$y = (x - 2)^2 + 2$$ which shows the vertex at $(2, 2)$.
This form is useful for graphing and understanding the parabola's vertex and direction.
Vertex Form 0D66A0
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