The equation of a parabola is y=x2+8x+25. 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+8x+25. 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 rewrite the given equation in vertex form.We have the equation y=x2+8x+25. To complete the square, we need to find a value that makes x2+8x 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 8 is 4, and 4 squared is 16. However, we notice that the constant term is already 25, which is a perfect square (52). This suggests that the equation may already be a perfect square trinomial.
Verify Perfect Square: Verify if the given equation is already a perfect square trinomial.We can rewrite the equation as y=(x2+8x+16)+(25−16) to see if it forms a perfect square.y=(x+4)2+9Since (x+4)2 is a perfect square trinomial, we have successfully written the equation in vertex form without needing to add and subtract a term.
Write Final Equation: Write the final equation in vertex form.The equation in vertex form is y=(x+4)2+9.
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