Art Show Attendance

Day 1 2 3 4 5 6 7 8
Visitors 60 120 240 180 180 60 300 240

Shark Size
Mass (kg) 10 30 50 70 70 80 80 90 100 110
Length (cm) 50 150 175 175 200 200 225 300 325 350

Why is this type of graph an appropriate representation of the shark size data?
a are looking at how the data changes over time
b what to see if theres a relationship between 2 variable

c it shows the correlation between the mass and length of the sharks