Exploring Unit 2 Lesson 11: Adding and Subtracting Rational Expressions

The video tutorial covers interpreting graphs of proportional relationships. It begins with an introduction to the concept, followed by examples such as Tom's drive and Tyler's walk to illustrate how proportionality is represented in graphs and tables. The lesson also includes a discussion on seagulls eating garbage to further explain the concept. The tutorial concludes with a detailed explanation of homework assignments related to proportional relationships.

What does the point (16, 12) represent in the context of Tom's drive?

• Tom walked 16 miles in 12 minutes.

• Tom drove 12 miles in 16 minutes.

• Tom walked 12 miles in 16 minutes.

• Tom drove 16 miles in 12 minutes.

What is the constant proportionality (k) for Tyler's walk?

• 0.75

• 1.5

• 1.25

• 2.5

If Tyler wanted to reach the bumper cars in half the time, how would the graph change?

• The line would become steeper.

• The line would remain the same.

• The line would disappear.

• The line would become less steep.

How much garbage does one seagull eat according to the given data?

• 2 pounds

• 2.5 pounds

• 1.5 pounds

• 3 pounds

What does the constant proportionality (k) tell us in the context of seagulls and garbage?

• The amount of garbage one seagull eats.

• The number of seagulls.

• The time taken to eat the garbage.

• The total amount of garbage.

What is the equation representing the relationship between cost (C) and months (M) for the streaming subscription?

• C = 6M

• C = 47.94M

• C = 7.99M

• C = 1.25M

How much would 4 months of the streaming subscription cost?

• $15.98

• $47.94

• $63.92

• $31.96

In the granola mix, how many grams of almonds are there per cup of oats?

• 50 grams

• 75 grams

• 100 grams

• 25 grams

What is the constant proportionality (k) in the granola mix context?

• 100

• 25

• 50

• 75

What information is needed to write an equation for a proportional relationship?

• Only the variables

• Variables and constant proportionality

• Only the constant proportionality

• Neither variables nor constant proportionality