1. Smart Home Devices has experienced significant changes in its financial performance over the past 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	250	30
2019	270	35
2020	290	40
2021	310	45

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.