Question

Count the number of units on the number line between 0 and the point a = 7. This gives the distance between the two numbers. The distance between a and zero on the real number line is

a) 7
b) 14
c) 21
d) 28

Answer 1

The distance on a number line between two points is the absolute value of their difference. For points 0 and a=7, the distance is 7 units, so the correct answer is (a) 7.

Step-by-step explanation:

The number of units on the number line between 0 and the point a = 7 represents the distance from 0 to the point a. Since distance on a number line is the absolute value of the difference between two points, and the difference between 0 and 7 is 7, the distance between these two points on the number line is 7 units. Therefore, the correct answer is (a) 7.