Which would show a linear association

x axis 5,8,2,4,6,12,10,1,3,7
y axis 800, 700, 350,450,1000,900,750
x axis 5,8,2,4,6,12,10,1,3,7
y axis 550,800,350,450,700,1000,900,250,400,750
x axis 5,8,2,4,6,12,10,1,3,7
y axis 550,800,250,500,500,400,650,150,400,750
x axis 5,8,2,4,6,12,10,1,3,7
y axis 550,800,250,300,700,1000,650,300,100,700

The first set of data would show a linear association.