Which model best represents the data?
The table shows the estimated number of lines of code
written by computer programmers per hour when x people
are working
Productivity
Oy=47(1.191)
y = 34(1.204)
y = 26.9x – 1.3
y = 27x-4
People working
2
4
6
8
10
12
Lines of code written hourly
50
110
160
210
270
320

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)