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Complete the square to re-write the quadratic function in vertex form:

y=x^(2)+3x-5
Answer: 
y=

Complete the square to re-write the quadratic function in vertex form:\newliney=x2+3x5 y=x^{2}+3 x-5 \newlineAnswer: y= y=

Full solution

Q. Complete the square to re-write the quadratic function in vertex form:\newliney=x2+3x5 y=x^{2}+3 x-5 \newlineAnswer: y= y=
  1. Focus on x2x^2 and xx terms: To complete the square and rewrite the quadratic function in vertex form, we first need to focus on the x2x^2 and xx terms. The vertex form of a quadratic function is y=a(xh)2+ky = a(x - h)^2 + k, where (h,k)(h, k) is the vertex of the parabola. We will complete the square for the x2+3xx^2 + 3x part of the function.
  2. Complete the square: The coefficient of x2x^2 is 11, which is already in the form we need. To complete the square, we take the coefficient of xx, which is 33, divide it by 22, and square the result to find the constant term that will complete the square.\newline(32)2=2.25(\frac{3}{2})^2 = 2.25 or 94\frac{9}{4}.
  3. Rewrite the equation: We add and subtract this constant term 94\frac{9}{4} inside the parentheses to maintain the equality of the equation.\newliney=x2+3x+94945y = x^2 + 3x + \frac{9}{4} - \frac{9}{4} - 5
  4. Factor the perfect square trinomial: Now we can rewrite the equation by grouping the perfect square trinomial and combining the constants outside the parentheses.\newliney=(x2+3x+94)945y = (x^2 + 3x + \frac{9}{4}) - \frac{9}{4} - 5
  5. Combine the constants: The perfect square trinomial x2+3x+94x^2 + 3x + \frac{9}{4} can be factored into (x+32)2\left(x + \frac{3}{2}\right)^2.\newliney = (x+32)2945\left(x + \frac{3}{2}\right)^2 - \frac{9}{4} - 5
  6. Final vertex form: Next, we need to combine the constants. To combine 94-\frac{9}{4} and 5-5, we need a common denominator. Since 55 is the same as 204\frac{20}{4}, we rewrite 5-5 as 204-\frac{20}{4}.\newliney=(x+32)294204y = (x + \frac{3}{2})^2 - \frac{9}{4} - \frac{20}{4}
  7. Final vertex form: Next, we need to combine the constants. To combine 94-\frac{9}{4} and 5-5, we need a common denominator. Since 55 is the same as 204\frac{20}{4}, we rewrite 5-5 as 204-\frac{20}{4}. \newliney=(x+32)294204y = (x + \frac{3}{2})^2 - \frac{9}{4} - \frac{20}{4}Now we combine the constants 94-\frac{9}{4} and 204-\frac{20}{4} to get 294-\frac{29}{4}. \newline5-500
  8. Final vertex form: Next, we need to combine the constants. To combine 94-\frac{9}{4} and 5-5, we need a common denominator. Since 55 is the same as 204\frac{20}{4}, we rewrite 5-5 as 204-\frac{20}{4}.
    y=(x+32)294204y = (x + \frac{3}{2})^2 - \frac{9}{4} - \frac{20}{4}Now we combine the constants 94-\frac{9}{4} and 204-\frac{20}{4} to get 294-\frac{29}{4}.
    5-500The quadratic function is now written in vertex form, which is 5-511, where 5-522 is the vertex of the parabola. In this case, the vertex form of the function is:
    5-500

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