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Algebra 1 5-2 Direct Variation

5 (1 rating)

| 23 Questions

Note 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.

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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? Explain.

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2

10 pts

Problem 1 Got It?

A

B

C

D

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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.

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5

10 pts

Problem 4 Got It?

A

B

C

D

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6

10 pts

A

B

C

D

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7

10 pts

A

B

C

D

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8

10 pts

A

B

C

D

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9

10 pts

A

B

C

D

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

10

5 pts

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

Always

Sometimes

Never

11

5 pts

You can write a direct variation in the form below.

Always

Sometimes

Never

12

5 pts

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.

2

-2

-1

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

65

12

9

15

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 above as representing slope or not representing slope.

- Represents slopeAnswer by dragging items here
- Does NOT represent slopeAnswer by dragging items here

22

10 pts

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

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

23

10 pts

Reflection: Math Success

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