Question

the number line shows an unknown number, u.
number line with 0, u, 1 marked
is -u positive or negative?
positive negative

Explanation:

Step1: Determine the sign of \( u \)

From the number line, \( u \) is between \( 0 \) and \( 1 \), so \( 0 < u < 1 \), which means \( u \) is positive.

Step2: Analyze the sign of \( -u \)

When we multiply a positive number by \( -1 \), the result is negative. Since \( u \) is positive, \( -u = -1\times u \) will be negative.

Answer:

negative