What equation does the model below represent

I’m confused on how to work the pie charts

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.