Doesn’t make any sense. You are making another one Y point is closer to the larger value. If you change 150000 to 5000 it wont show. https://jsfiddle.net/092wwvxL/2/ . Let say I have these values
x: 5, y: 10
x: 10, y:500,
x: 15: y:500000,
x: 20: y: 2
Then in Y axis you will see the wrong values.