from the question;
we to find |x| when x = 15 and when x = -15
by definition of absolute value we have
[tex]\lvert x\rvert\text{ = x}[/tex]Thats for every value of x, the absolute value is always positive
Hence,
[tex]\begin{gathered} \text{when x = 15} \\ \lvert15\rvert=\text{ 15} \end{gathered}[/tex]Also
[tex]\begin{gathered} \text{when x = - 15} \\ \lvert-15\rvert\text{ = 15} \end{gathered}[/tex]Therefore the correct answer is
Both values are 15
option B
