Question

find the distance between $-4.3$ and $7.5$ on a number line.
distance: $square$

Explanation:

Step1: Use distance formula on number line

The distance between two numbers $a$ and $b$ is $|a - b|$. Let $a=-4.3$, $b=7.5$.
Expression: $|-4.3 - 7.5|$

Step2: Calculate the value inside absolute value

Compute the subtraction inside the absolute value.
Expression: $|-11.8|$

Step3: Evaluate the absolute value

Absolute value of a negative number is positive.
Expression: $11.8$

Answer:

$11.8$