Question

1. |9|=?

two solutions

1. |-9|=?

type a response

Explanation:

Question 13:

Step1: Recall absolute value definition

The absolute value of a non - negative number \(a\) (where \(a\geq0\)) is the number itself, i.e., \(|a| = a\) when \(a\geq0\).
Since \(9\) is a non - negative number (\(9>0\)), we use the definition of absolute value.
\(|9|=9\)

Question 14:

Step1: Recall absolute value definition

The absolute value of a negative number \(-a\) (where \(a > 0\)) is the positive counterpart of that number, i.e., \(|-a|=a\) when \(a>0\).
For \(-9\), here \(a = 9\) (since \(-a=-9\) implies \(a = 9\)), so by the definition of absolute value, \(|-9| = 9\).

Answer:

s:
Question 13: \(9\)
Question 14: \(9\)