Point B is located at 0
The two points that are opposite are A and C
Point D is located at 35
-20 is one tick mark to the left of point A.
A number line is a visual representation of numbers on a straight line. It is usually horizontal, with zero in the middle and positive numbers increasing to the right and negative numbers decreasing to the left. The line extends indefinitely in both directions, representing the fact that there are infinitely many numbers.
Benefits of using number lines:
- Enhances understanding: Number lines provide a concrete and visual way to understand number relationships and operations.
- Develops number sense: By manipulating numbers on the line, students can develop a deeper understanding of the relative magnitudes of numbers and their relationships to one another.
- Supports problem-solving: Number lines can be used to solve various math problems, including addition, subtraction, comparison, and estimation.
Analysing the number given in question,
As from here, we can determine that one section of number, i.e. on gap in the number line is 5.
So, at place of first (?) in B it will be -5+5 = 0
And in place of D it will be 30+5 = 35
So, B will be at 0
Two points that are opposite are A and C, as A is at -15 and C is at +15.
Point D is located at 35
One tick mark to the left of A will be -20