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Grade 9 practice chapters

1. Grade 9 · Chapter 541

   Verify an algebraic solution · practice 60

   Solve 7x + (-10) = 18, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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2. Grade 9 · Chapter 542

   Test a complete solution ray · practice 60

   Solve 6x ≤ -24, including the boundary. Follow the calculation, then test the quantities in the animated example.

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3. Grade 9 · Chapter 543

   Interpret signed slope and intercept · practice 57

   For the line y = 1.5x + (-8), 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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4. Grade 9 · Chapter 544

   Classify line-system outcomes · practice 60

   Solve the simultaneous equations y = 2.5x and y = -1.5x + (3). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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5. Grade 9 · Chapter 545

   Connect symmetry and quadratic values · practice 60

   For y = 1(x − (-2.5))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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6. Grade 9 · Chapter 546

   Explain a binomial area product · practice 58

   Evaluate (x + 3)(x + 3) at x = 4.5 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.

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7. Grade 9 · Chapter 547

   Preserve function-machine order · practice 60

   Let f(u) = 2u + (-6) 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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8. Grade 9 · Chapter 548

   Solve a two-direction distance condition · practice 58

   Solve |x − (-7)| = 6. Follow the calculation, then test the quantities in the animated example.

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9. Grade 9 · Chapter 549

   Compare repeated growth factors · practice 60

   Start at 4 and apply a -30% 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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10. Grade 9 · Chapter 550

    Verify an algebraic solution · practice 61

    Solve 6x + (-5) = 6, then check by substitution. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

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11. Grade 9 · Chapter 551

    Test a complete solution ray · practice 61

    Solve 8x ≤ -1, including the boundary. Follow the calculation, then test the quantities in the animated example.

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12. Grade 9 · Chapter 552

    Interpret signed slope and intercept · practice 58

    For the line y = 1x + (5), 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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13. Grade 9 · Chapter 553

    Classify line-system outcomes · practice 61

    Solve the simultaneous equations y = -0.5x and y = 2x + (-4). 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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14. Grade 9 · Chapter 554

    Connect symmetry and quadratic values · practice 61

    For y = -1(x − (1))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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15. Grade 9 · Chapter 555

    Explain a binomial area product · practice 59

    Evaluate (x + 1)(x + 8) at x = 5.5 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.

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16. Grade 9 · Chapter 556

    Preserve function-machine order · practice 61

    Let f(u) = 1u + (1) and g(u) = u². Find f(g(2)) and g(f(2)). Follow the calculation, then test the quantities in the animated example.

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17. Grade 9 · Chapter 557

    Solve a two-direction distance condition · practice 59

    Solve |x − (1)| = 2.5. Follow the calculation, then test the quantities in the animated example.

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18. Grade 9 · Chapter 558

    Compare repeated growth factors · practice 61

    Start at 5 and apply a -35% 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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19. Grade 9 · Chapter 559

    Verify an algebraic solution · practice 62

    Solve 5x + (0) = -6, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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20. Grade 9 · Chapter 560

    Test a complete solution ray · practice 62

    Solve 2x ≤ 23, including the boundary. Follow the calculation, then test the quantities in the animated example.

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