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The equation of a parabola is y=x24x1y = x^2 - 4x - 1. Write the equation in vertex form.\newlineWrite any numbers as integers or simplified proper or improper fractions.\newline______

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Q. The equation of a parabola is y=x24x1y = x^2 - 4x - 1. Write the equation in vertex form.\newlineWrite any numbers as integers or simplified proper or improper fractions.\newline______
  1. Identify vertex form: Identify the vertex form of a parabola.\newlineThe vertex form of a parabola is given by y=a(xh)2+ky = a(x - h)^2 + k, where (h,k)(h, k) is the vertex of the parabola.
  2. Complete square: Complete the square to transform the given equation into vertex form.\newlineWe have the equation y=x24x1y = x^2 - 4x - 1. To complete the square, we need to find a value that, when added and subtracted to the equation, forms a perfect square trinomial with the xx-terms. This value is found by taking half of the coefficient of xx, squaring it, and then adding and subtracting it from the equation.\newlineHalf of the coefficient of xx is 4/2=2-4/2 = -2. Squaring this gives us (2)2=4(-2)^2 = 4. We will add and subtract 44 to the equation.
  3. Add value: Add and subtract the value found in Step 22 to the equation.\newliney=x24x+441y = x^2 - 4x + 4 - 4 - 1\newlineNow we have added 44 and subtracted 44, which keeps the equation balanced.
  4. Rewrite equation: Rewrite the equation by grouping the perfect square trinomial and combining the constants.\newliney=(x24x+4)41y = (x^2 - 4x + 4) - 4 - 1\newliney=(x2)25y = (x - 2)^2 - 5\newlineWe have now written the equation in vertex form, where (x2)2(x - 2)^2 is the perfect square trinomial and 5-5 is the combination of the constants.

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