The equation of a parabola is y=x2−4x+2. 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=x2−4x+2. 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 transform the given equation into vertex form.We have the equation y=x2−4x+2. To complete the square, we need to find the value that makes x2−4x a perfect square trinomial. We do this by taking half of the coefficient of x, squaring it, and adding it to and subtracting it from the equation.Half of the coefficient of x is −4/2=−2. Squaring this gives us (−2)2=4. We add and subtract 4 to the equation.
Add squared term: Add and subtract the squared term to the equation.y=x2−4x+4−4+2Now, we can rewrite the equation by grouping the perfect square trinomial and combining the constants.
Rewrite in vertex form: Rewrite the equation in vertex form.y=(x2−4x+4)−4+2y=(x−2)2−2We have now written the equation in vertex form, where (x−2)2 is the perfect square trinomial and −2 is the combination of the constants.
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