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Put the quadratic into vertex form and state the coordinates of the vertex.

y=x^(2)+10 x-2
Vertex Form: 
y=
Vertex: 
(◻,◻)

Put the quadratic into vertex form and state the coordinates of the vertex.\newliney=x2+10x2 y=x^{2}+10 x-2 \newlineVertex Form: y= y= \newlineVertex: (,) (\square, \square)

Full solution

Q. Put the quadratic into vertex form and state the coordinates of the vertex.\newliney=x2+10x2 y=x^{2}+10 x-2 \newlineVertex Form: y= y= \newlineVertex: (,) (\square, \square)
  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. Convert quadratic equation: Consider the given quadratic equation y=x2+10x2y = x^2 + 10x - 2.\newlineTo convert this into vertex form, we need to complete the square.
  3. Factor out coefficient: Factor out the coefficient of the x2x^2 term if it is not 11. In this case, the coefficient of x2x^2 is 11, so we do not need to factor anything out.
  4. Find square of half: Find the square of half the coefficient of the xx term to complete the square. Half of the coefficient of xx is 102\frac{10}{2}, which is 55. Squaring 55 gives us 2525.
  5. Add and subtract square: Add and subtract the square of half the coefficient of xx inside the equation.\newliney=x2+10x+25252y = x^2 + 10x + 25 - 25 - 2\newlineThis allows us to form a perfect square trinomial while keeping the equation balanced.
  6. Rewrite equation grouping: Rewrite the equation grouping the perfect square trinomial and combining the constants. \newliney=(x2+10x+25)27y = (x^2 + 10x + 25) - 27
  7. Factor perfect square trinomial: Factor the perfect square trinomial. y=(x+5)227y = (x + 5)^2 - 27
  8. Write in vertex form: Write the equation in vertex form.\newlineVertex Form: y=(x+5)227y = (x + 5)^2 - 27
  9. Identify vertex coordinates: Identify the coordinates of the vertex.\newlineThe vertex form of the equation is y=a(xh)2+ky = a(x - h)^2 + k. Comparing this with our equation y=(x+5)227y = (x + 5)^2 - 27, we find that h=5h = -5 and k=27k = -27.\newlineTherefore, the coordinates of the vertex are (5,27)(-5, -27).

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