Question: what is the equation of line of symmetry?
Answer: To find the line of symmetry algebraically, you need to identify if the equation is written in standard form or vertex form. Standard form is y = ax^2 + bx + c, where a, b, and c equal all real numbers. You can use the formula x = -b / 2a to find the line of symmetry. Vertex form is y = (x - h)^2 + k.