Question

what is one way to find the distance? find $-15 -$ ?. then take the absolute value. (number line with -15, 0, 7 marked)

Explanation:

Step1: Identify the two points

The number line has points at -15 and 7. We want the distance between -15 and 7.

Step2: Recall distance formula on number line

The distance between two numbers \(a\) and \(b\) on the number line is \(|a - b|\) (or \(|b - a|\)). Here, \(a=-15\) and \(b = 7\), so the expression would be \(|-15-7|\) (or \(|7 - (-15)|\)). So the missing number is 7.

Answer:

7