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Grade 9 practice chapters

1. Grade 9 · Chapter 381

   Solve a two-direction distance condition · practice 41

   Solve |x − (-5)| = 6.5. Follow the calculation, then test the quantities in the animated example.

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2. Grade 9 · Chapter 382

   Compare repeated growth factors · practice 41

   Start at 4 and apply a -25% 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 383

   Verify an algebraic solution · practice 42

   Solve 1x + (3) = -13, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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4. Grade 9 · Chapter 384

   Test a complete solution ray · practice 42

   Solve -2x ≤ -1, including the boundary. Follow the calculation, then test the quantities in the animated example.

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5. Grade 9 · Chapter 385

   Interpret signed slope and intercept · practice 39

   For the line y = 4x + (-9), 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 386

   Classify line-system outcomes · practice 42

   Solve the simultaneous equations y = -3x and y = 1.5x + (-8). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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7. Grade 9 · Chapter 387

   Connect symmetry and quadratic values · practice 42

   For y = 0.5(x − (-3))² + (-4), find y at x = 2 and identify the vertex. Follow the calculation, then test the quantities in the animated example.

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8. Grade 9 · Chapter 388

   Explain a binomial area product · practice 42

   Evaluate (x + 1)(x + 4) at x = 1.5 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.

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9. Grade 9 · Chapter 389

   Preserve function-machine order · practice 42

   Let f(u) = 1u + (-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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10. Grade 9 · Chapter 390

    Solve a two-direction distance condition · practice 42

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

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11. Grade 9 · Chapter 391

    Compare repeated growth factors · practice 42

    Start at 5 and apply a -30% 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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12. Grade 9 · Chapter 392

    Verify an algebraic solution · practice 43

    Solve 8x + (7) = 56, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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13. Grade 9 · Chapter 393

    Test a complete solution ray · practice 43

    Solve -4x ≤ 22, including the boundary. Follow the calculation, then test the quantities in the animated example.

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14. Grade 9 · Chapter 394

    Interpret signed slope and intercept · practice 40

    For the line y = 3.5x + (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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15. Grade 9 · Chapter 395

    Classify line-system outcomes · practice 43

    Solve the simultaneous equations y = 1x and y = -2x + (7). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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16. Grade 9 · Chapter 396

    Connect symmetry and quadratic values · practice 43

    For y = -1.5(x − (0.5))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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17. Grade 9 · Chapter 397

    Explain a binomial area product · practice 43

    Evaluate (x + 7)(x + 8) 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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18. Grade 9 · Chapter 398

    Preserve function-machine order · practice 43

    Let f(u) = 4u + (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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19. Grade 9 · Chapter 399

    Solve a two-direction distance condition · practice 43

    Solve |x − (2)| = 5. Follow the calculation, then test the quantities in the animated example.

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20. Grade 9 · Chapter 400

    Compare repeated growth factors · practice 43

    Start at 6 and apply a -35% 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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