Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

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

y=x^(2)+3x+8
Answer: 
y=

Complete the square to re-write the quadratic function in vertex form:\newliney=x2+3x+8 y=x^{2}+3 x+8 \newlineAnswer: y= y=

Full solution

Q. Complete the square to re-write the quadratic function in vertex form:\newliney=x2+3x+8 y=x^{2}+3 x+8 \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. To complete the square, we need to create a perfect square trinomial from the x2x^2 and xx terms.
  2. Create perfect square trinomial: The coefficient of x2x^2 is 11, which is already in the form we need. To create a perfect square trinomial, we take the coefficient of xx, which is 33, divide it by 22, and square the result. This will give us the constant term we need to add and then subtract to complete the square.\newline(32)2=2.25(\frac{3}{2})^2 = 2.25 or 94\frac{9}{4}
  3. Add and subtract constant term: We add and subtract (32)2(\frac{3}{2})^2 inside the equation to maintain the equality. We add it to create the perfect square trinomial and subtract it to keep the equation balanced.\newliney=x2+3x+(32)2(32)2+8y = x^2 + 3x + (\frac{3}{2})^2 - (\frac{3}{2})^2 + 8
  4. Simplify the equation: Now we simplify the equation by combining the constant terms.\newliney=x2+3x+9494+8y = x^2 + 3x + \frac{9}{4} - \frac{9}{4} + 8\newliney=x2+3x+94+32494y = x^2 + 3x + \frac{9}{4} + \frac{32}{4} - \frac{9}{4}\newliney=x2+3x+234y = x^2 + 3x + \frac{23}{4}
  5. Factor perfect square trinomial: Next, we factor the perfect square trinomial and combine the constant terms outside the square. \newliney=(x+32)2+234y = (x + \frac{3}{2})^2 + \frac{23}{4}
  6. Quadratic function in vertex form: This is the quadratic function in vertex form. The vertex form is y=a(xh)2+ky = a(x - h)^2 + k, so our hh is 32-\frac{3}{2} and our kk is 234\frac{23}{4}.

More problems from Convert equations of conic sections from general to standard form