Find the equation of the axis of symmetry for the parabola y=x2−8x+9. 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=x2−8x+9. 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=x2−8x+9, we can compare it to the standard form and identify the coefficients as follows:a=1 (coefficient of x2)b=−8 (coefficient of x)c=9 (constant term)
Use Axis of Symmetry Formula: Use the formula for the axis of symmetry.The axis of symmetry for a parabola given by the equation 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=1b=−8x=−(−8)/(2⋅1)x=8/2x=4The axis of symmetry is the line x=4.
More problems from Characteristics of quadratic functions: equations