Find the equation of the axis of symmetry for the parabola y=x2+x+215. Simplify any numbers and write them as proper fractions, improper fractions, or integers._____
Q. Find the equation of the axis of symmetry for the parabola y=x2+x+215. Simplify any numbers and write them as proper fractions, improper fractions, or integers._____
Identify Coefficients: Identify the coefficients of the quadratic equation.The quadratic equation is given in the form y=ax2+bx+c. For the parabola y=x2+x+215, we can identify the coefficients as follows:a=1 (coefficient of x2)b=1 (coefficient of x)c=215 (constant term)
Use Axis of Symmetry Formula: Use the formula for the axis of symmetry.The axis of symmetry for a parabola in the form y=ax2+bx+c is given by the formula x=−2ab. We will substitute the values of a and b into this formula to find the axis of symmetry.
Substitute Values into Formula: Substitute the values of a and b into the formula.a=1b=1x=−2ab=−2⋅11=−21
Write Axis of Symmetry Equation: Write the equation of the axis of symmetry.The axis of symmetry is a vertical line, so its equation is of the form x=constant. In this case, the constant is −21. Therefore, the equation of the axis of symmetry is x=−21.
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