The graph shows the total number of COVID-19 cases in the UK from February 23 to April 17 in 2020. Each value in the x-axis shows days since COVID cases started to be measured in the UK, with “day 1” representing February 23. The y-axis shows the total number of cases per day. Which of the following correctly uses the graph to determine the best estimate for the number of COVID-19 cases in the UK on day 22?

(1 point)
Responses

3,500 cases
3,500 cases

25,000 cases
25,000 cases

21,000 cases
21,000 cases

30,000 cases
30,000 cases
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The best estimate for the number of COVID-19 cases in the UK on day 22 would be 21,000 cases. This is because, based on the graph, the total number of cases on day 20 is close to 20,000 and on day 30 is close to 30,000, so a reasonable estimate for day 22 would be around 21,000 cases.