A number line is shown in the image. Select the number that is 4.5 units from 6 on the given number line.

The number is 4.5 units away from 6, let x represent said number then you can express it as:
|x-4.5|<6
Solve for x
[tex]\begin{gathered} |x-4.5|<6 \\ |x|<6-4.5 \\ |x|<\frac{3}{2} \\ |x|<1.5 \end{gathered}[/tex]The determined number is below 1.5