20. The table shows a person's age and the person's maximum recommended heart rate. Express the relation presented
In the table below as the set of ordered pairs.
Age (in years)
X
20
30
40
Maximum Recommended Heart Rate (Beats per minute)
у
200
190
180
A. (20, 200). (30, 190). (40, 180)
B. (200,20), (190, 30). (180.40) C. (20,30), (40,200). (190, 180)​