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Lesson 2 Homework PracticeRepresenting Linear Functions

Find four solutions of each equation. Write the solutions as ordered pairs.1–6. Sample answers are given.

1. y = x - 5 2. y = -7 3. y = -3x + 1 (-1, -6), (0, -5), (-1, -7), (0, -7), (-1, 4), (0, 1),

(1, -4), (2, -3) (1, -7), (2, -7) (1, -2), (2, -5)

4. x - y = 6 5. y = 2x + 4 6. 7x - y = 14 (-1, -7), (0, -6), (-1, 2), (0, 4), (-1, -21), (0, -14),

(1, -5), (2, -4) (1, 6), (2, 8) (1, -7), (2, 0)

Graph each equation by plotting ordered pairs. 7. y = 2x - 1 8. 6x + y = 2 9. y = x + 4

x

y

Oy = 2x - 1

x

y

2-4-6-8

246

-2-4-6-8

-10

4 6 8-2 O

6x + y = 2

x

y

O

y = x + 4

10. y = 7 11. y = 3x - 9 12. y =

1 − 2 x - 6

x

y

2-4-6-8

468

10

2

-2-4-6

4 6 8-2O

y = 7

x

y

2-4-6-8

46

2

-2-4-6-8

-10

4 6 8-2 O

y = 3x - 9

x

y

2-4-6-8

468

2

4 6 8O-2-4

-8-6

-2

y = x - 612

13. Kirsten is making gingerbread cookies using her grandmother’s recipe and needs to convert grams to ounces. The equation y = 0.04x describes the approximate number of ounces y in x grams.

a. Find three solutions of this equation. Sample answer: (100, 4), (150, 6), (200, 8)

b. Draw the graph that contains these points.

c. Do negative values of x make sense in this case? Explain. No; a recipe cannot contain a negative number

of grams of an ingredient.x

y8

21

34567

100 200 300 400O

Grams

Ou

nce

s

y = 0.04x

Program: Pre-Algebra

Vendor: Aptara

Component: ANC_C09_L2

Grade: AMPDF Pages

Math Accelerated • Chapter 9 Linear Functions

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