i have to make a prediction equation for a series of data (times for the olympic 400m) and then make a prediction about what the winning time will be for 2024. i chose two ordered pairs: (3, 51.08) (10, 49.11). the x-values (3 and 10) stand for the third year and the tenth year. the y-values (51.08 and 49.11) are the winning times, which are in seconds.

*the prediction equation needs to be in the y=mx+b form

the answer should be somewhere between 48 and 52
pleaseeeee& thank you to anyone that can help me!