Worksheet directions

Grade 8 • Guided Practice • Work with your teacher or a partner. Discuss the model or strategy, then complete each problem.

Sample questions

1. A tank starts with -2 liters and gains 3 liters per minute. Explain y = 3x + -2. Answer: ___
2. A tank starts with 0 liters and gains 4 liters per minute. Explain y = 4x + 0. Answer: ___
3. A tank starts with 0 liters and gains 4 liters per minute. Explain y = 4x + 0. Use Set B values. Answer: ___
4. A tank starts with 1 liters and gains 2 liters per minute. Explain y = 2x + 1. Answer: ___
5. A tank starts with 5 liters and gains -1 liters per minute. Explain y = -1x + 5. Answer: ___
6. A tank starts with -2 liters and gains 3 liters per minute. Explain y = 3x + -2. Use Set B values. Answer: ___

See the preview for diagrams, answer spaces, and the complete layout.

Common Core connections

Source labels: 8.F.A.1–3. Review the learning goals below to check the fit for your class.

• 8.F.A.1 — Understand a function as a rule
• 8.F.A.2 — Compare two functions across representations
• 8.F.A.3 — Interpret y = mx + b as a linear function

Bring it into your lesson

Open this worksheet in Sparkclass to copy it to your Files. Check the resulting layout before sharing it with students.