Constant Rates of Change

Constant Rates of Change

EQ: How can you identify and represent proportional relationships?

Page 9

Poll

Did you watch the lesson video prior to class?

• Yes.

• No.

Get out your notes.

Turn to page 9.

Seriously. They are helpful!

Use your page 9 notes!!

Multiple Select

What are the two ways you can check two rates are proportional?

• Compare unit rates.

• Write an equation for the proportion.

• Find k.

• Use cross products.

Multiple Choice

Are these rates proportional?

 $\frac{\text{19 dollars}}{2\ lbs}\ \ \ \ \ \ \ \frac{76\ dollars}{8\ lbs}$  

• Yes. They both have a unit rate of $9.50/1 lb

• No, they have different unit rates. 

• Yes. They both have a unit rate of $19/2 lbs. 

Fill in the Blanks

Write an equation for the proportional relationship from the last question. Here is one of the rates:

 $\frac{21\ dollars}{2\ lbs}$  (use the form y = kx where k is your number)

Open Ended

Questions about this lesson? (If you have no questions, how well do you think you understand this lesson/material?)

Assignment/Asynchronous Time:

Assignment: Week 6 Classwork (My HMH) Problems #6-10 only!

Work on any missing work you have, or any retakes/redos you have.

Need more help? Come to my homeroom help session!