Final answer:
On the number line, Point Y: -4.1 is further left compared to Point X: -2.1, making Point Y the least value.
Step-by-step explanation:
The question involves finding which point represents the least value on the number line, given the options of Point Y: -41/1 and Point X: -21/1.
When comparing numbers on a number line, the point that is furthest to the left represents the smallest or least value.
In this case, Point Y: -41/1 (or simply -4.1) is less than Point X: -21/1 (or -2.1), so Point Y represents the least value on the number line.
It's important to note that the absolute value of -4.1 is greater than -2.1, but in terms of being less on the number line, -4.1 is considered smaller because it is further left.