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Standards Math Practice

Grade 9 · Building confidence · 8 questions · Version PG-1I5A3Q1-ZR72

1.

If f(x) = 8x - 1, find f(13).

2.

If f(x) = 2x - 1, find f(3).

3.

If f(x) = 7x - 1, find f(4).

4.

If f(x) = 8x - 1, find f(6).

5.

If f(x) = 10x - 1, find f(4).

6.

If f(x) = 10x - 1, find f(13).

7.

If f(x) = 8x - 1, find f(2).

8.

If f(x) = 4x - 1, find f(7).

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 8
  1. If f(x) = 8x - 1, find f(13).103
  2. If f(x) = 2x - 1, find f(3).5
  3. If f(x) = 7x - 1, find f(4).27
  4. If f(x) = 8x - 1, find f(6).47
  5. If f(x) = 10x - 1, find f(4).39
  6. If f(x) = 10x - 1, find f(13).129
  7. If f(x) = 8x - 1, find f(2).15
  8. If f(x) = 4x - 1, find f(7).27

Worked example

Read the direction, identify the assessed skill, solve or cite evidence, and check the response.

Common mistake

Using a memorized procedure without checking what the question asks.

Helpful hint

Name the standard skill before answering.