Questions: Use the table to answer the question.
Find the rate of change.
Time (minutes) Distance (miles)
3 36
5 60
7 84
9 108
11 132
Transcript text: Use the table to answer the question.
Find the rate of change.
\begin{tabular}{|c|c|}
\hline Time (minutes) & Distance (miles) \\
\hline 3 & 36 \\
\hline 5 & 60 \\
\hline 7 & 84 \\
\hline 9 & 108 \\
\hline 11 & 132 \\
\hline
\end{tabular}
Solution
Solution Steps
Step 1: Identify the given data points
The table provides the following data points:
At \( t = 3 \) minutes, \( d = 36 \) miles.
At \( t = 5 \) minutes, \( d = 60 \) miles.
At \( t = 7 \) minutes, \( d = 84 \) miles.
At \( t = 9 \) minutes, \( d = 108 \) miles.
At \( t = 11 \) minutes, \( d = 132 \) miles.
Step 2: Calculate the rate of change
The rate of change (slope) is calculated using the formula:
\[
\text{Rate of change} = \frac{\Delta d}{\Delta t} = \frac{d_2 - d_1}{t_2 - t_1}
\]
Using the first two data points:
\[
\text{Rate of change} = \frac{60 - 36}{5 - 3} = \frac{24}{2} = 12 \, \text{miles per minute}.
\]
Step 3: Verify the rate of change with other data points
To ensure consistency, calculate the rate of change using another pair of data points, such as \( t = 7 \) and \( t = 9 \):
\[
\text{Rate of change} = \frac{108 - 84}{9 - 7} = \frac{24}{2} = 12 \, \text{miles per minute}.
\]
The rate of change is consistent across the data points.