Question

error analysis describe the error in finding the length of $overline{ab}$. ab = 1 - 4.5 = - 3.5. should have taken the absolute value. should have measured to hundredths. should have lined up ruler starting at 0. should have subtracted 5.5 instead of 4.5. the actual length of the segment is centimeters.

Explanation:

Step1: Identify correct endpoints

Point A is at 1 and point B is at 4.5.

Step2: Calculate length

Length of $\overline{AB}=|4.5 - 1|$.

Step3: Simplify

$|4.5 - 1|=|3.5| = 3.5$.

Answer:

The error is that should have taken the absolute value.
The actual length of the segment is 3.5 centimeters.