The equation of a parabola is y=x2+8x+12. 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+12. 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 square:Complete the square to rewrite the given equation in vertex form.The given equation is y=x2+8x+12. To complete the square, we need to find the value that makes x2+8x into a perfect square trinomial. This value is (8/2)2=42=16. We will add and subtract 16 within the equation.
Add and subtract: Add and subtract 16 to the equation.y=x2+8x+12 can be written as y=x2+8x+16−16+12 by adding and subtracting 16.
Group terms, combine: Group the perfect square trinomial and combine the constants.Now, we group the terms to form a perfect square trinomial and combine the constants: y=(x2+8x+16)−16+12.
Factor trinomial, simplify: Factor the perfect square trinomial and simplify the constant term.The factored form of the perfect square trinomial is (x+4)2, and combining the constants −16+12 gives −4. So, the equation becomes y=(x+4)2−4.
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