Find the equation of the axis of symmetry for the parabola y=x2+x. 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. Simplify any numbers and write them as proper fractions, improper fractions, or integers._____
Identify Coefficients: Identify the coefficients of the quadratic equation.The given parabola is y=x2+x. This can be compared to the standard form of a quadratic equation, which is y=ax2+bx+c. Here, a=1, b=1, and c is not given because it is 0.
Use Axis of Symmetry Formula: Use the formula for the axis of symmetry.The axis of symmetry for a parabola given by y=ax2+bx+c is x=−2ab. We will substitute the values of a and b into this formula to find the axis of symmetry.
Substitute Values: Substitute the values of a and b into the formula.a=1 and b=1, so the axis of symmetry is x=−(2⋅1)1=−21.
Write Equation: Write the equation of the axis of symmetry.The axis of symmetry is a vertical line, so its equation is x=constant. In this case, the constant is −21. Therefore, the equation of the axis of symmetry is x=−21.
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