The formula to calculate the axis of symmetry (x) is:
\[ x = \frac{-b}{2a} \]
Where:
The axis of symmetry of a parabola is a vertical line that divides the parabola into two mirror-image halves. It passes through the vertex of the parabola. The equation of the axis of symmetry can be found using the formula \( x = \frac{-b}{2a} \), where \( a \) and \( b \) are coefficients from the quadratic equation \( ax^2 + bx + c = 0 \).
Let's assume the following values:
Step 1: Multiply the coefficient of \( x^2 \) term by 2:
\[ 2a = 2 \times 2 = 4 \]
Step 2: Divide the negative value of the slope by the result from Step 1:
\[ x = \frac{-(-8)}{4} = \frac{8}{4} = 2 \]
The axis of symmetry (x) is 2.