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Daniel Math Academy · Grade 7 Math

Identify Proportional Relationships

Skill E.7 · Ratios & proportions · ★★☆ Medium · Quarter 3

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Is y proportional to x? Write yes or no. If yes, give the constant of proportionality, k.

1. 1
   $y=0.25x$
2. 2
   $y=0.4x-3$
3. 3
   $y=2.5x$
4. 4
   $y=0.5x-2$
5. 5
   $y=2.5x-8$
6. 6
   $y=1.75x$

Daniel Math Academy · Grade 7 Math

Answer Key

E.7 Identify Proportional Relationships · ★★☆ Medium

1. 1yes; $k=0.25$
2. 2no
3. 3yes; $k=2.5$
4. 4no
5. 5no
6. 6yes; $k=1.75$