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Standards Math Practice

Grade 9 · Building confidence · 8 questions · Version PG-19PXU29-ZR72

1.

If f(x) = 10x - 1, find f(12).

2.

If f(x) = 3x - 1, find f(8).

3.

If f(x) = 9x - 1, find f(2).

4.

If f(x) = 8x - 1, find f(9).

5.

If f(x) = 4x - 1, find f(12).

6.

If f(x) = 10x - 1, find f(7).

7.

If f(x) = 4x - 1, find f(8).

8.

If f(x) = 8x - 1, find f(12).

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 15
  1. If f(x) = 10x - 1, find f(12).119
  2. If f(x) = 3x - 1, find f(8).23
  3. If f(x) = 9x - 1, find f(2).17
  4. If f(x) = 8x - 1, find f(9).71
  5. If f(x) = 4x - 1, find f(12).47
  6. If f(x) = 10x - 1, find f(7).69
  7. If f(x) = 4x - 1, find f(8).31
  8. If f(x) = 8x - 1, find f(12).95

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.