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Grade 9 practice chapters

1. Grade 9 · Chapter 641

   Explain a binomial area product · practice 69

   Evaluate (x + 5)(x + 7) at x = 2 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.

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2. Grade 9 · Chapter 642

   Preserve function-machine order · practice 71

   Let f(u) = 3u + (3) and g(u) = u². Find f(g(3.5)) and g(f(3.5)). Follow the calculation, then test the quantities in the animated example.

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3. Grade 9 · Chapter 643

   Solve a two-direction distance condition · practice 69

   Solve |x − (4)| = 0.5. Follow the calculation, then test the quantities in the animated example.

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4. Grade 9 · Chapter 644

   Compare repeated growth factors · practice 71

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

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5. Grade 9 · Chapter 645

   Verify an algebraic solution · practice 72

   Solve 3x + (-1) = 38, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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6. Grade 9 · Chapter 646

   Test a complete solution ray · practice 71

   Solve -6x ≤ 10, including the boundary. Follow the calculation, then test the quantities in the animated example.

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7. Grade 9 · Chapter 647

   Interpret signed slope and intercept · practice 66

   For the line y = -3x + (-7), 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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8. Grade 9 · Chapter 648

   Classify line-system outcomes · practice 72

   Solve the simultaneous equations y = 2.5x and y = -1x + (4). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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9. Grade 9 · Chapter 649

   Connect symmetry and quadratic values · practice 72

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

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10. Grade 9 · Chapter 650

    Explain a binomial area product · practice 70

    Evaluate (x + 3)(x + 4) at x = 3.5 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.

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11. Grade 9 · Chapter 651

    Preserve function-machine order · practice 72

    Let f(u) = 2u + (-3) and g(u) = u². Find f(g(0.5)) and g(f(0.5)). Follow the calculation, then test the quantities in the animated example.

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12. Grade 9 · Chapter 652

    Solve a two-direction distance condition · practice 70

    Solve |x − (-5)| = 6. Follow the calculation, then test the quantities in the animated example.

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13. Grade 9 · Chapter 653

    Compare repeated growth factors · practice 72

    Start at 7 and apply a -5% change during each of 4 complete periods. Find the final amount. Follow the calculation, then test the quantities in the animated example.

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14. Grade 9 · Chapter 654

    Verify an algebraic solution · practice 73

    Solve 2x + (4) = 26, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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15. Grade 9 · Chapter 655

    Test a complete solution ray · practice 72

    Solve 8x ≤ -16, including the boundary. Follow the calculation, then test the quantities in the animated example.

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16. Grade 9 · Chapter 656

    Interpret signed slope and intercept · practice 67

    For the line y = -3.5x + (6), 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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17. Grade 9 · Chapter 657

    Classify line-system outcomes · practice 73

    Solve the simultaneous equations y = -0.5x and y = 2.5x + (-3). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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18. Grade 9 · Chapter 658

    Connect symmetry and quadratic values · practice 73

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

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19. Grade 9 · Chapter 659

    Explain a binomial area product · practice 71

    Evaluate (x + 1)(x + 1) 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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20. Grade 9 · Chapter 660

    Preserve function-machine order · practice 73

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

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