The equation of a parabola is y=x2−2x−1. Write the equation in vertex form.Write any numbers as integers or simplified proper or improper fractions.______
Q. The equation of a parabola is y=x2−2x−1. Write the equation in vertex form.Write any numbers as integers or simplified proper or improper fractions.______
Complete the square:Complete the square for the x-terms.Add and subtract (22)2=1 inside the equation.y=x2−2x+1−1−1
Group and combine terms: Group the perfect square trinomial and combine the constants.y=(x2−2x+1)−2
Write as binomial squared: Write the perfect square trinomial as a binomial squared.y=(x−1)2−2
Check vertex form: Check if the equation is now in vertex form, which is y=a(x−h)2+k.y=(x−1)2−2 is in vertex form with a=1, h=1, and k=−2.
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