Chapter 13.2, Problem 41SR

To determine

To find: the measurement of two points $EF$ using number line.

Answer to Problem 41SR

The measurement of $EF=1.$

Explanation of Solution

Given:

  

The coordinates of  $E$ and  $F$ are $4$ and  $5$ .

Concept used:

Distance should be put in modulus since, distance cannot be negative.

Difference in the coordinate is:

$\text{higher value-lower value}$ .

Calculation:

The coordinates of  $E$ and  $F$ are $4$ and  $5$ .

Distance of the coordinate can be calculated as:

  $\text{higher value-lower value}$ and distance should be put in modulus since, distance cannot be negative.

  $EF=\left|5-4\right|=1.$

Hence, the measurement of $EF=1.$