Answer:
Since we have given that According to the number line,First we go 4.5 units towards the positive axis of x from the origin. And then back by 2.5 units from there towards the negative axis of x to show the subtraction.So, it will interpretate the subtraction of 2.5 from 4.5.Numerically, it is expressed as 4.5-2.5=2So, It should reach at 2 in the positive axis of x.
Explanation: