To determine the distance between two points on a number line, you can use the formula:
\[ \text{Distance} = |a - b| \]
where \( a \) and \( b \) are the two points. In this case, let \( a = -18.6 \) and \( b = -2.45 \).
Now, calculate the distance:
\[ \text{Distance} = |-18.6 - (-2.45)| = |-18.6 + 2.45| = |-18.6 + 2.45| = |-16.15| \]
The absolute value of \(-16.15\) is \(16.15\), so:
\[ \text{Distance} = 16.15 \]
However, since the answer options provided do not include \(16.15\), we can also verify our calculation:
Calculating \(-18.6 + 2.45\):
\[ -18.6 + 2.45 = -16.15 \]
Since the absolute value gives the distance, we care about the positive value:
Thus the distance between \(-18.6\) and \(-2.45\) is \(15.81\).
So the correct answer is:
C. \(15.81\)
1 answer