Educational supply and demand worksheet for students to plot and analyze economic curves.

Problem Overview:

The task involves plotting supply and demand curves based on the given data and answering questions about the relationships between price and quantity supplied/demanded.

#### Step 1: Plot the Supply Curve
- The supply schedule is provided in the table on the right.
- Price (P) is on the vertical axis (Y-axis).
- Quantity Supplied (Qs) is on the horizontal axis (X-axis).

Supply Schedule:
| Price (P) | Quantity Supplied (Qs) |
|-----------|-------------------------|
| 5 | 20 |
| 10 | 40 |
| 15 | 60 |
| 20 | 80 |
| 25 | 100 |

#### Plotting the Supply Curve:
1. Label the axes:
- Vertical axis (Y-axis): Price (P)
- Horizontal axis (X-axis): Quantity Supplied (Qs)
2. Plot each point from the supply schedule:
- (5, 20)
- (10, 40)
- (15, 60)
- (20, 80)
- (25, 100)
3. Connect the points with a straight line to form the supply curve.

#### Analysis of the Supply Curve:
- The supply curve slopes upward.
- This indicates a positive relationship between price and quantity supplied. As the price increases, the quantity supplied also increases.

#### Answer for Supply Curve Question:
- Is the supply curve sloping upward or downward?
Upward
- What does this imply about the relationship between the price and quantity supplied?
As the price increases, the quantity supplied also increases.

---

#### Step 2: Plot the Demand Curve
- The demand schedule is provided in the table on the right.
- Price (P) is on the vertical axis (Y-axis).
- Quantity Demanded (Qd) is on the horizontal axis (X-axis).

Demand Schedule:
| Price (P) | Quantity Demanded (Qd) |
|-----------|-------------------------|
| 3 | 45 |
| 6 | 36 |
| 9 | 27 |
| 12 | 18 |
| 15 | 9 |

#### Plotting the Demand Curve:
1. Label the axes:
- Vertical axis (Y-axis): Price (P)
- Horizontal axis (X-axis): Quantity Demanded (Qd)
2. Plot each point from the demand schedule:
- (3, 45)
- (6, 36)
- (9, 27)
- (12, 18)
- (15, 9)
3. Connect the points with a straight line to form the demand curve.

#### Analysis of the Demand Curve:
- The demand curve slopes downward.
- This indicates a negative relationship between price and quantity demanded. As the price increases, the quantity demanded decreases.

#### Answer for Demand Curve Question:
- Is the demand curve sloping upward or downward?
Downward
- What does this imply about the relationship between the price and quantity demanded?
As the price increases, the quantity demanded decreases.

---

Final Answers:

1. Supply Curve:
- Slope: Upward
- Relationship: As the price increases, the quantity supplied also increases.

2. Demand Curve:
- Slope: Downward
- Relationship: As the price increases, the quantity demanded decreases.

Final Boxed Answers:

\[
\boxed{
\text{Supply Curve: Upward; Positive relationship. Demand Curve: Downward; Negative relationship.}
}
\]