f(-1) = meaning with full time workers, the project %3D would be complete in days. This interpretation in the context of the problem. f(7) = meaning with full time workers, the project would be complete in days. This interpretation in the context of the problem. f(4.5) = meaning with full time workers, the project %3D would be complete in days. This interpretation in the context of the problem. Based on the observations above, it is clear that an appropriate domain for the function is

A contractor is in charge of hiring people for a construction project. The number of days it would take to complete the project with a full time workers can be found using the function f(x) = 189/x. Assume once workers are assigned to the project, no workers may be added or taken off the project until it is finished. Find and interpret the given function values and determine an appropriate domain for the function. f(-1) = ___，meaning with___ full time workers, the project would be complete in ___ days. This interpretation ___（makes sense/does NOT make sense）in the context of the problem. f（7）=___，meaning with___ full time workers, the project would be complete in___ days. This interpretation ___（makes sense/does NOT make sense）in the context of the problem. f(4.5) = ___，meaning with ___full time workers, the project would be complete in ___days. This interpretation ___（makes sense/does NOT sense）in the context of the problem. Based on the observations above, it is clear that an appropriate domain for the function is___（all real numbers / non- negative real numbers / real numbers in a≤x≤b / integers / whole numbers 0，1，2... / positive integers 1，2，3...）