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7th Grade Math (Math 7) · Chapter 3 · Lesson 3.4 · Printable PDF

Recognizing a Proportional Relationship in a Graph Worksheet with Answer Key

5 problems on recognizing proportional relationships in graphs: checking points for a line through the origin, picturing graphs of situations, a copper wire graph, three kinds of rope, and a stack of boxes. 4 pages, with a worked answer key.

5 problems4 pagesanswer key
Printable Recognizing a proportional relationship in a graph worksheet with answer key - 7th Grade Math (Math 7) (Page 1 PDF preview)
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Try one first: a free Chapter 1 worksheet (PDF, no sign-in).

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What's on the worksheet

  1. Decide if listed points lie on a line through the origin and give the constant.
    (0, 0), (3, 4.5), (5, 7.5), (8, 12)(2, 7), (4, 13), (6, 19), (10, 31)(0, 0), (2, 2), (4, 8), (6, 18)(5, 2), (10, 4), (15, 6), (25, 10)(0, 0), (4, 6), (8, 12), (12, 17)
  2. Picture the graph of each situation and decide if it is a proportional line.
  3. Use a graph of a copper wire's mass against its length.
  4. Read a graph of the cost of three kinds of rope against length.
  5. Decide if the height of Isaac's stack of boxes is proportional to the number of boxes.

Teach it first

The free lesson teaches it with worked examples and practice problems.

Recognizing a proportional relationship in a graph: the lesson ›

More Chapter 3 worksheets: Proportional relationships