Final answer:
The equation of the second line is y = (-1/4.83)x + b.
Step-by-step explanation:
To find the equation of the second line, we need to determine its slope. Since it is perpendicular to the line passing through the point (1.6, -3.1), the slope of the second line will be the negative reciprocal of the slope of the first line.
The slope of the first line is 4.83. Therefore, the slope of the second line will be -1/4.83.
Using the slope-intercept form of the equation, y = mx + b, and substituting the values of the given point and the slope, we can find the equation of the second line to be y = (-1/4.83)x + b.