1. The problem asks which color of the line represents a given equation. 2. To solve this, we need to identify the equation of each colored line and compare it to the given equation. 3. The general form of a line equation is $y = mx + b$, where $m$ is the slope and $b$ is the y-intercept. 4. By examining the graph (not provided here), find the slope and intercept of each colored line. 5. Calculate or identify the equation for each line. 6. Match the equation given in the question to the equation of one of the colored lines. 7. The color of that line is the answer. Since the actual graph and equations are not provided, please provide the equation or the graph details to determine the correct color.