Task 2: Two-Variable Linear Equations

In this activity, you will use equations and graphs to represent real-world relationships and draw conclusions about the relationships.

The tiles that Bruce used were each [tex]\(\frac{1}{4}\)[/tex] of a square foot in area. The table shows the area covered by Felicia's tiles in terms of the number of tiles used.

[tex]\[
\begin{tabular}{|c|c|}
\hline
Number of Tiles & Area Covered (sq ft) \\
\hline
6 & 1 \\
\hline
12 & 2 \\
\hline
18 & 3 \\
\hline
\end{tabular}
\][/tex]

Bruce and Felicia want to know whose tiles cover the most area per tile.

Part A

Whose tiles cover the most area per tile? Explain your reasoning.



Answer :

Alright, class, let's break down the task step by step to determine whose tiles cover the most area per tile.

### Step 1: Understand Bruce's Tiles

Bruce's tiles each cover [tex]\(\frac{1}{4}\)[/tex] of a square foot in area. This means that:

[tex]\[ \text{Area of one Bruce's tile} = 0.25 \text{ square feet} \][/tex]

### Step 2: Analyze Felicia's Tiles

We are given a table that shows how much area Felicia's tiles cover for a given number of tiles used.

[tex]\[ \begin{array}{|c|c|} \hline \text{Number of Tiles} & \text{Area Covered (sq ft)} \\ \hline 6 & 1 \\ \hline 12 & 2 \\ \hline 18 & 3 \\ \hline \end{array} \][/tex]

For each case in the table, let's calculate the area covered by one of Felicia's tiles.

### Step 3: Calculate Area per Felicia Tile

1. For 6 tiles covering 1 square foot:
[tex]\[ \text{Area per Felicia tile} = \frac{1 \text{ sq ft}}{6} = 0.1667 \text{ sq ft} \][/tex]

2. For 12 tiles covering 2 square feet:
[tex]\[ \text{Area per Felicia tile} = \frac{2 \text{ sq ft}}{12} = 0.1667 \text{ sq ft} \][/tex]

3. For 18 tiles covering 3 square feet:
[tex]\[ \text{Area per Felicia tile} = \frac{3 \text{ sq ft}}{18} = 0.1667 \text{ sq ft} \][/tex]

So, for Felicia's tiles, the area covered by one tile consistently is:

[tex]\[ 0.1667 \text{ square feet per tile} \][/tex]

### Step 4: Compare the Areas Covered per Tile

- Bruce's tile: 0.25 square feet
- Felicia's tile: 0.1667 square feet

### Conclusion

From the calculations, Bruce’s tiles cover [tex]\(\boxed{0.25}\)[/tex] square feet per tile, and Felicia’s tiles cover approximately [tex]\(\boxed{0.1667}\)[/tex] square feet per tile.

Therefore, Bruce's tiles cover more area per tile than Felicia's tiles.