Question

Which expression will calculate the distance

between any two points (p and q) on a number line?

Answer 1

c

Explanation:

Subtracting one number from the other will igve you the difference between them. However as P and Q are not specific numbers we do not know which is larger. Therefore we must use absolute value to make sure we do not end up with a negative number by subtracting the larger number from the smaller one.

Answer 2

The answer is (A)

Explanation:

By subtracting both number you will be left off with the distance between the numbers.

Edit: answer (C) is wrong because it refers to the absolute values of p and q, the absolute value of a number is equal to how many numbers that number is away from zero.