Unit 4 Review 2025

Front

What does the point (0, 0) mean in the context of a cost graph?

Back

When 0 cookies are purchased, $0 are spent.

Front

What is the rate of change in a graph?

Back

The rate of change describes how much one quantity changes in relation to another quantity.

Front

How do you determine which company has a greater rate of change?

Back

Compare the slopes of the lines representing each company's data on a graph.

Front

What does the slope of a line represent in a graph?

Back

The slope represents the rate of change between the two variables plotted on the graph.

Front

What is a proportion in the context of slope?

Back

A proportion compares two ratios, often used to describe the slope of a line.

Front

How do you find the lowest price per hour from a graph?

Back

Identify the point on the graph with the lowest y-value for a given x-value.

Front

What does the equation y=²³/₂x represent?

Back

It represents a linear relationship where y is dependent on x, often used to describe pricing.

Front

How can you compare prices between two stores?

Back

Evaluate the equations or tables representing prices to determine which is lower.

Front

What is the significance of the y-intercept in a graph?

Back

The y-intercept is the point where the line crosses the y-axis, indicating the starting value.

Front

What does it mean if two companies charge the same rate per hour?

Back

It means that for every hour of service, both companies charge the same amount.