4. The graph shows a nonlinear function.

4a. Write the equation of a second function that has a constant rate
of change of 0 and passes through (2, 1). What does its graph
look like?

4b. What is the difference in outputs of the two functions at x = 0? Explain.

4c. How many times do the graphs of the functions intersect? Explain.
d. For inputs between 1 and 0.5, which function has greater outputs? Explain.

4d. For inputs between -1 and 0.5, which function has greater outputs? Explain.