Final answer:
The y-intercept of the graph of f is -173.5.
Step-by-step explanation:
The y-intercept of the graph of f can be found by substituting x = 0 into the equation of the line.
The equation of the line is y = -173.5 + 4.83x. Substituting x = 0 gives:
y = -173.5 + 4.83(0)
y = -173.5
Therefore, the y-intercept of the graph of f is -173.5.