Q. Put the quadratic into vertex form and state the coordinates of the vertex.y=x2+2x+13Vertex Form: y=Vertex: (□,□)
Identify Vertex Form: Identify the vertex form of a parabola.The vertex form of a parabola is y=a(x−h)2+k, where (h,k) is the vertex of the parabola.
Complete Square:Complete the square to rewrite the quadratic equation in vertex form.Given equation: y=x2+2x+13We need to find a value to add and subtract to complete the square.The coefficient of x is 2, so we take half of it, which is 1, and then square it to get 1.Add and subtract this value inside the parentheses: y=(x2+2x+1)−1+13
Simplify Equation: Simplify the equation by combining like terms.y=(x2+2x+1)+12Now, recognize that (x2+2x+1) is a perfect square trinomial.y=(x+1)2+12This is the equation in vertex form.
Identify Vertex: Identify the vertex of the parabola.From the vertex form y=(x+1)2+12, we can see that the vertex (h,k) is (−1,12).
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