Direct Variation worksheet with problems involving proportional relationships and equations.

Worksheet on direct variation with sections A, B, and C, showing proportional relationships and equations for y, s, and A.

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- Section A:
- Row 2: k = 4, Equation: y = 4x, y = 45 → x = 11.25, x = 7 → y = 28
- Row 3: k = 100, Equation: y = 100x, y = 924 → x = 9.24
- Row 4: k = 4/9, Equation: y = (4/9)x, y = 16 → x = 36
- Row 5: Equation: y = 0.5x, y = 27, x = 54 → y = 27
- Row 6: k = 1/3, y = 50 → x = 150

- Section B:
- Row 2: k = 20, Equation: s = 20q², s = 80 when q = 2
- Row 3: k = 20, Equation: s = 20q², s = 1280 → q = 8
- Row 4: s = 18, q = 6 → s = 18

- Section C:
- Row 2: k = 32, Equation: A = 32√z, A = 96 when z = 9
- Row 3: k = 50, Equation: A = 50√z, A = 55 → z = 1.21
- Row 4: A = 175, z = 4900 → A = 175

Parent Tip: Review the logic above to help your child master the concept of direct variation worksheet 7th grade.

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