Megan and Suzanne each have a plant. They track the growth of their plants for four weeks. Whose plant grew at a faster rate, and what was the rate?

Suzanne's Plant
\begin{tabular}{|c|c|}
\hline Week & Plant Height (in) \\
\hline 1 & 4.5 \\
\hline 2 & 7 \\
\hline 3 & 9.5 \\
\hline 4 & 12 \\
\hline
\end{tabular}

Megan's Plant
\begin{tabular}{|c|c|}
\hline Week & Plant Height (in) \\
\hline 1 & 5.0 \\
\hline 2 & 8 \\
\hline 3 & 11 \\
\hline 4 & 14 \\
\hline
\end{tabular}



Answer :

To determine whose plant grew at a faster rate, we need to calculate the growth rate for each plant over the four-week period.

### Suzanne's Plant:
1. Initial height: 4.5 inches
2. Final height: 12 inches
3. The growth duration is from Week 1 to Week 4, which is 3 weeks.

We can calculate the growth rate using the formula:
[tex]\[ \text{Growth Rate} = \frac{\text{Final Height} - \text{Initial Height}}{\text{Number of Weeks}} \][/tex]

For Suzanne's plant:
[tex]\[ \text{Growth Rate} = \frac{12\text{ inches} - 4.5\text{ inches}}{3\text{ weeks}} \][/tex]
[tex]\[ \text{Growth Rate} = \frac{7.5\text{ inches}}{3\text{ weeks}} \][/tex]
[tex]\[ \text{Growth Rate} = 2.5\text{ inches per week} \][/tex]

### Megan's Plant:
1. Initial height: 3 inches
2. Final height: 12 inches
3. The growth duration is from Week 1 to Week 4, which is 3 weeks.

Using the same formula for Megan's plant:
[tex]\[ \text{Growth Rate} = \frac{12\text{ inches} - 3\text{ inches}}{3\text{ weeks}} \][/tex]
[tex]\[ \text{Growth Rate} = \frac{9\text{ inches}}{3\text{ weeks}} \][/tex]
[tex]\[ \text{Growth Rate} = 3.0\text{ inches per week} \][/tex]

### Comparison:
- Suzanne's plant growth rate: 2.5 inches per week
- Megan's plant growth rate: 3.0 inches per week

### Conclusion:
Megan's plant grew at a faster rate. The growth rate of Megan's plant was 3.0 inches per week compared to Suzanne's plant, which grew at a rate of 2.5 inches per week.