The equation of a parabola is y=x2−8x+13. 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=x2−8x+13. Write the equation in vertex form.Write any numbers as integers or simplified proper or improper fractions.______
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 rewrite the equation in vertex form.We have the equation y=x2−8x+13. To complete the square, we need to find the value that makes x2−8x a perfect square trinomial. This value is (8/2)2=42=16. We will add and subtract this value inside the equation.
Add and subtract value: Add and subtract the value found in Step 2 to the equation.y=x2−8x+16−16+13We added 16 to complete the square and then subtracted 16 to keep the equation balanced.
Group and combine: Group the perfect square trinomial and combine the constants.y=(x2−8x+16)−16+13y=(x−4)2−3Now the equation is in vertex form, where (x−4)2 is the perfect square trinomial and −3 is the combination of the constants.
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