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Grade 9 practice chapters

1. Grade 9 · Chapter 681

   Test a complete solution ray · practice 75

   Solve -6x ≤ 5, including the boundary. Follow the calculation, then test the quantities in the animated example.

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2. Grade 9 · Chapter 682

   Interpret signed slope and intercept · practice 70

   For the line y = 0.5x + (-4), 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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3. Grade 9 · Chapter 683

   Classify line-system outcomes · practice 76

   Solve the simultaneous equations y = 1x and y = 2.5x + (-8). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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4. Grade 9 · Chapter 684

   Connect symmetry and quadratic values · practice 75

   For y = 1(x − (-2))² + (0), find y at x = 2 and identify the vertex. Follow the calculation, then test the quantities in the animated example.

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5. Grade 9 · Chapter 685

   Explain a binomial area product · practice 74

   Evaluate (x + 8)(x + 8) at x = 5 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.

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6. Grade 9 · Chapter 686

   Preserve function-machine order · practice 76

   Let f(u) = 2u + (-2) and g(u) = u². Find f(g(-4)) and g(f(-4)). Follow the calculation, then test the quantities in the animated example.

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7. Grade 9 · Chapter 687

   Solve a two-direction distance condition · practice 74

   Solve |x − (-7)| = 1.5. Follow the calculation, then test the quantities in the animated example.

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8. Grade 9 · Chapter 688

   Compare repeated growth factors · practice 76

   Start at 1 and apply a -20% change during each of 8 complete periods. Find the final amount. Follow the calculation, then test the quantities in the animated example.

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9. Grade 9 · Chapter 689

   Verify an algebraic solution · practice 77

   Solve 6x + (-2) = 60, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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10. Grade 9 · Chapter 690

    Test a complete solution ray · practice 76

    Solve 8x ≤ -21, including the boundary. Follow the calculation, then test the quantities in the animated example.

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11. Grade 9 · Chapter 691

    Interpret signed slope and intercept · practice 71

    For the line y = 0x + (9), find y when x = 3 and identify the slope and vertical intercept. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

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12. Grade 9 · Chapter 692

    Classify line-system outcomes · practice 77

    Solve the simultaneous equations y = -1.5x and y = -0.5x + (7). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

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13. Grade 9 · Chapter 693

    Connect symmetry and quadratic values · practice 76

    For y = -1(x − (1.5))² + (-3.5), find y at x = 2 and identify the vertex. Follow the calculation, then test the quantities in the animated example.

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14. Grade 9 · Chapter 694

    Explain a binomial area product · practice 75

    Evaluate (x + 3)(x + 7) at x = 3 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

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15. Grade 9 · Chapter 695

    Preserve function-machine order · practice 77

    Let f(u) = 1u + (5) 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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16. Grade 9 · Chapter 696

    Solve a two-direction distance condition · practice 75

    Solve |x − (1)| = 6.5. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

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17. Grade 9 · Chapter 697

    Compare repeated growth factors · practice 77

    Start at 2 and apply a -25% change during each of 5 complete periods. Find the final amount. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

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18. Grade 9 · Chapter 698

    Verify an algebraic solution · practice 78

    Solve 5x + (3) = 48, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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19. Grade 9 · Chapter 699

    Interpret signed slope and intercept · practice 72

    For the line y = -1x + (-7), find y when x = 3 and identify the slope and vertical intercept. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

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20. Grade 9 · Chapter 700

    Classify line-system outcomes · practice 78

    Solve the simultaneous equations y = 2x and y = 2.5x + (0). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

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