Algebra 1 5-2 Complete Lesson: Direct Variation

5 (1 rating)

by Matthew Richardson

| 24 QuestionsNote from the author:

A complete formative lesson with embedded slideshow, mini lecture screencasts, checks for understanding, practice items, mixed review, and reflection. I create these assignments to supplement each lesson of Pearson's Common Core Edition Algebra 1, Algebra 2, and Geometry courses. See also mathquest.net and twitter.com/mathquestEDU.

1

1

10 pts

Solve It! The diagram shows how long it takes to hear thunder after you see lightning. What general rule can you use to model this situation?

2

2

10 pts

Problem 1 Got It?

A

B

C

D

3

3

10 pts

Problem 2 Got It?

A

B

C

D

4

20 pts

Problem 3 Got it? Weight on the moon y varies directly with weight on Earth x. A person who weighs 100 lb on Earth weighs 16.6 lb on the moon. What is an equation that relates weight on earth x and weight on the moon y? What is the graph of this equation?

Be sure to include relevant graph detail: label axes, indicate units on both axes, and use arrows to represent end behavior, as appropriate.

5

5

10 pts

Problem 4 Got It?

A

B

C

D

6

6

10 pts

A

B

C

D

7

7

10 pts

A

B

C

D

8

8

10 pts

A

B

C

D

9

9

10 pts

A

B

C

D

10

5 pts

Vocabulary: Determine whether each statement is always, sometimes, or never true.

The ordered pair (0, 0) is a solution of the direct variation equation y = kx.

Always

Sometimes

Never

11

5 pts

Vocabulary: Determine whether each statement is always, sometimes, or never true.

You can write a direct variation in the form below.

Always

Sometimes

Never

12

5 pts

Vocabulary: Determine whether each statement is always, sometimes, or never true.

The constant of variation for a direct variation represented by y = kx is y/x.

Always

Sometimes

Never

13

10 pts

Reasoning: Suppose q varies directly with p. Does this imply that p varies directly with q? Explain.

14

10 pts

Review Lesson 5-1: Find the slope of the line that passes through the pair of points.

1

2

-2

-1

15

10 pts

Review Lesson 5-1: Find the slope of the line that passes through the pair of points.

Enter only a number. If necessary, use fraction form.

16

10 pts

Review Lesson 5-1: Find the slope of the line that passes through the pair of points.

Enter only a number. If necessary, use fraction form.

17

10 pts

Review Lesson 1-2: Evaluate the expression for the given value of the variable.

6a + 3 for a = 2

12

65

15

9

18

10 pts

Review Lesson 1-2: Evaluate the expression for the given value of the variable.

-2x - 5 for x = 3

Enter only a number.

19

10 pts

Review Lesson 1-2: Evaluate the expression for the given value of the variable.

ΒΌx + 2 for x = 16

Enter only a number.

20

10 pts

Review Lesson 1-2: Evaluate the expression for the given value of the variable.

8 - 5n for n = 3

Enter only a number.

21

10 pts

Vocabulary Review: Classify each formula from the image below as representing slope or not representing slope.

- Formula A
- Formula B
- Formula C

- Represents slope
- Does NOT represent slope

22

10 pts

Use Your Vocabulary: Drag the correct word from the list to complete each sentence.

- directly
- direct
- directions

- Renee gave the visitor __?__ to the museum.
- The fans went __?__ to their seats.
- There is a __?__ connection between the outside temperature and the number of people at the beach.

23

100 pts

Notes: Take a clear picture or screenshot of your Cornell notes for this lesson. Upload it to the canvas. Zoom and pan as needed.

For a refresher on the Cornell note-taking system, click here.

24

10 pts

Reflection: Math Success

Add to my formatives list

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