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Grade 9 practice chapters

1. Grade 9 · Chapter 661

   Solve a two-direction distance condition · practice 71

   Solve |x − (3)| = 2.5. Follow the calculation, then test the quantities in the animated example.

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2. Grade 9 · Chapter 662

   Compare repeated growth factors · practice 73

   Start at 8 and apply a -10% change during each of 1 complete periods. Find the final amount. Follow the calculation, then test the quantities in the animated example.

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3. Grade 9 · Chapter 663

   Verify an algebraic solution · practice 74

   Solve 1x + (9) = 14, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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4. Grade 9 · Chapter 664

   Test a complete solution ray · practice 73

   Solve 2x ≤ 8, including the boundary. Follow the calculation, then test the quantities in the animated example.

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5. Grade 9 · Chapter 665

   Interpret signed slope and intercept · practice 68

   For the line y = 3.5x + (2), find y when x = 3 and identify the slope and vertical intercept. Follow the calculation, then test the quantities in the animated example.

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6. Grade 9 · Chapter 666

   Classify line-system outcomes · practice 74

   Solve the simultaneous equations y = 0.5x and y = 2.5x + (5). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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7. Grade 9 · Chapter 667

   Explain a binomial area product · practice 72

   Evaluate (x + 4)(x + 7) at x = 2.5 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.

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8. Grade 9 · Chapter 668

   Preserve function-machine order · practice 74

   Let f(u) = 4u + (-3) and g(u) = u². Find f(g(2.5)) and g(f(2.5)). Follow the calculation, then test the quantities in the animated example.

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9. Grade 9 · Chapter 669

   Solve a two-direction distance condition · practice 72

   Solve |x − (-6)| = 8. Follow the calculation, then test the quantities in the animated example.

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10. Grade 9 · Chapter 670

    Compare repeated growth factors · practice 74

    Start at 9 and apply a -15% change during each of 6 complete periods. Find the final amount. Follow the calculation, then test the quantities in the animated example.

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11. Grade 9 · Chapter 671

    Verify an algebraic solution · practice 75

    Solve 8x + (-12) = 3, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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12. Grade 9 · Chapter 672

    Test a complete solution ray · practice 74

    Solve -4x ≤ -18, including the boundary. Follow the calculation, then test the quantities in the animated example.

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13. Grade 9 · Chapter 673

    Interpret signed slope and intercept · practice 69

    For the line y = 2x + (-1), find y when x = 3 and identify the slope and vertical intercept. Follow the calculation, then test the quantities in the animated example.

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14. Grade 9 · Chapter 674

    Classify line-system outcomes · practice 75

    Solve the simultaneous equations y = -2.5x and y = -0.5x + (-1). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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15. Grade 9 · Chapter 675

    Connect symmetry and quadratic values · practice 74

    For y = -1.5(x − (1.5))² + (3), find y at x = 2 and identify the vertex. Follow the calculation, then test the quantities in the animated example.

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16. Grade 9 · Chapter 676

    Explain a binomial area product · practice 73

    Evaluate (x + 2)(x + 4) at x = 4 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.

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17. Grade 9 · Chapter 677

    Preserve function-machine order · practice 75

    Let f(u) = 3u + (4) and g(u) = u². Find f(g(-1)) and g(f(-1)). Follow the calculation, then test the quantities in the animated example.

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18. Grade 9 · Chapter 678

    Solve a two-direction distance condition · practice 73

    Solve |x − (2)| = 4.5. Follow the calculation, then test the quantities in the animated example.

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19. Grade 9 · Chapter 679

    Compare repeated growth factors · practice 75

    Start at 10 and apply a -20% change during each of 3 complete periods. Find the final amount. Follow the calculation, then test the quantities in the animated example.

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20. Grade 9 · Chapter 680

    Verify an algebraic solution · practice 76

    Solve 7x + (-7) = -9, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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