Understanding Graphs and Ratios

This video tutorial on lesson 7.1b covers graphing with ratios. It emphasizes the importance of understanding prior lessons and demonstrates how to represent real-world problems using tables and graphs. The tutorial explains the coordinate plane, plotting points, and connecting them with lines. It also discusses equivalent ratios, unit rates, and their application in solving real-world problems. The video concludes with a reminder to be cautious when transitioning from tables to graphs.

Why is it important to watch lesson 7.1a before starting lesson 7.1b?

• It provides a summary of the entire course.

• It introduces the concept of graphing with ratios.

• It contains foundational knowledge necessary for understanding 7.1b.

• It includes a quiz that is required for 7.1b.

How can real-world problems involving ratios be represented?

• Using only graphs.

• Using tables and graphs.

• Using equations only.

• Using verbal descriptions.

What is an ordered pair?

• A pair of numbers used to locate a point on a graph.

• A pair of letters used in algebra.

• A pair of words used in a sentence.

• A pair of colors used in art.

What is the origin on a coordinate plane?

• The point where the graph starts.

• The point where the x-axis and y-axis intersect.

• The highest point on the graph.

• The point where the graph ends.

How do you plot a point on a coordinate grid?

• By using both the x and y coordinates.

• By using the origin only.

• By using only the x-coordinate.

• By using only the y-coordinate.

What is the purpose of using scale numbers on a graph?

• To confuse the viewer.

• To add more numbers to the graph.

• To make the graph look more complex.

• To estimate the location of points.

In the previous work problem, how many batteries were in three packages?

• 48 batteries

• 36 batteries

• 24 batteries

• 12 batteries

In an ordered pair, which coordinate comes first?

• The z-coordinate

• The origin

• The y-coordinate

• The x-coordinate

What does connecting points with a line on a graph show?

• The points are equivalent ratios.

• The points form a circle.

• The points are incorrect.

• The points are unrelated.

What is a unit rate?

• A rate with a denominator of one.

• A rate with both numerator and denominator as one.

• A rate with a numerator of one.

• A rate with no numbers.