Straight line with a positive slope

Oct 13, 2025 by wbrum.org 54 views

Understanding the Rate Chart

The cab company charges according to the following rate chart:

Distance (x)	Charge (y)
0 miles	$0
1 mile	$2.50
2 miles	$5.00
3 miles	$7.50
4 miles	$10.00
5 miles	$12.50
6 miles	$15.00
7 miles	$17.50
8 miles	$20.00
9 miles	$22.50
10 miles	$25.00

Which Graph Correctly Represents the Charge?

To determine which graph correctly represents the charge, we need to analyze the rate chart and understand the relationship between the distance (x) and the charge (y).

Linear Relationship

The rate chart shows a linear relationship between the distance (x) and the charge (y). For every additional mile, the charge increases by $2.50. This is a classic example of a linear function, where the output (charge) is directly proportional to the input (distance).

Graphing the Rate Chart

To graph the rate chart, we can use the following steps:

Plot the points: (0, 0), (1, 2.50), (2, 5.00), (3, 7.50), (4, 10.00), (5, 12.50), (6, 15.00), (7, 17.50), (8, 20.00), (9, 22.50), and (10, 25.00).
Draw a line through the points: Since the relationship is linear, we can draw a straight line through the points.

Graph Options

There are several graph options that can represent the charge, but only one is correct. Let's analyze the options:

Option 1: A straight line with a positive slope

This graph represents a linear relationship between the distance (x) and the charge (y). The slope of the line is 2.50, which means that for every additional mile, the charge increases by $2.50.

Option 2: A curve with a positive slope

This graph does not represent a linear relationship between the distance (x) and the charge (y). The curve is not a straight line, and the slope is not constant.

Option 3: A straight line with a negative slope

This graph does not represent a linear relationship between the distance (x) and the charge (y). The slope of the line is negative, which means that the charge decreases as the distance increases.

Option 4: A curve with a negative slope

This graph does not represent a linear relationship between the distance (x) and the charge (y). The curve is not a straight line, and the slope is not constant.

Conclusion

Based on the analysis, the correct graph that represents the charge is a straight line with a positive slope. This graph accurately represents the linear relationship between the distance (x) and the charge (y).

Graph Representation

Here is the correct graph representation:

### Correct Graph

Straight line with a positive slope
Slope: 2.50
Intercept: 0
Equation: y = 2.50x

Final Answer

The final answer is a straight line with a positive slope, which represents the linear relationship between the distance (x) and the charge (y).

Understanding the Rate Chart

The cab company charges according to the following rate chart:

Distance (x)	Charge (y)
0 miles	$0
1 mile	$2.50
2 miles	$5.00
3 miles	$7.50
4 miles	$10.00
5 miles	$12.50
6 miles	$15.00
7 miles	$17.50
8 miles	$20.00
9 miles	$22.50
10 miles	$25.00

Q&A

Q1: What is the charge for a 5-mile cab ride?

A1: According to the rate chart, the charge for a 5-mile cab ride is $12.50.

Q2: How much does the charge increase for every additional mile?

A2: The charge increases by $2.50 for every additional mile.

Q3: What is the equation of the line that represents the charge?

A3: The equation of the line is y = 2.50x.

Q4: What is the slope of the line that represents the charge?

A4: The slope of the line is 2.50.

Q5: What is the intercept of the line that represents the charge?

A5: The intercept of the line is 0.

Q6: Is the relationship between the distance (x) and the charge (y) linear?

A6: Yes, the relationship is linear.

Q7: What type of graph represents the charge?

A7: A straight line with a positive slope represents the charge.

Q8: What is the charge for a 10-mile cab ride?

A8: According to the rate chart, the charge for a 10-mile cab ride is $25.00.

Q9: How much does the charge increase for every additional mile beyond 5 miles?

A9: The charge increases by $2.50 for every additional mile beyond 5 miles.

Q10: What is the equation of the line that represents the charge beyond 5 miles?

A10: The equation of the line is y = 2.50x + 12.50.