1. Tech Innovators has witnessed variations in its financial performance over the last four years. The following data represents the company's annual revenue and net income in millions of dollars:

Year	Revenue ($M)	Net Income ($M)
2018	220	24
2019	250	30
2020	280	36
2021	310	42

Using the data provided, plot a line graph showing the trend of revenue and net income over the years. Calculate the average annual growth rate of revenue and net income.