Q. Put the quadratic into vertex form and state the coordinates of the vertex.y=x2−2x−35Vertex Form: y=Vertex: (□,□)
Identify Vertex Form: Identify the vertex form of a parabola. The vertex form of a parabola is given by y=a(x−h)2+k, where (h,k) is the vertex of the parabola.
Complete the Square:Complete the square to transform the given quadratic equation into vertex form.The given quadratic equation is y=x2−2x−35.To complete the square, we need to find a value that, when added and subtracted to the equation, forms a perfect square trinomial.
Calculate Value: Calculate the value needed to complete the square.The coefficient of x is −2. Half of −2 is −1, and the square of −1 is 1. We will add and subtract 1 inside the parentheses to complete the square.
Rewrite Equation: Rewrite the equation by adding and subtracting the calculated value.y=x2−2x+1−1−35Now, group the perfect square trinomial and the constants.y=(x2−2x+1)−36
Factor Trinomial: Factor the perfect square trinomial.y=(x−1)2−36Now, the equation is in vertex form.
Identify Vertex: Identify the vertex of the parabola.The vertex form of the equation is y=(x−1)2−36.Comparing this with the standard vertex form y=a(x−h)2+k, we find that h=1 and k=−36.Therefore, the vertex of the parabola is (1,−36).
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