10,000 ways to practice.
One idea at a time.

Attempt · Explain · Animate

Grade 9 practice chapters

1. Grade 9 · Chapter 481

   Test a complete solution ray · practice 53

   Solve 8x ≤ 9, including the boundary. Follow the calculation, then test the quantities in the animated example.

   Question · Worked solution · Animated example

   Open practice chapter

2. Grade 9 · Chapter 482

   Interpret signed slope and intercept · practice 50

   For the line y = 0.5x + (8), find y when x = 3 and identify the slope and vertical intercept. Follow the calculation, then test the quantities in the animated example.

   Question · Worked solution · Animated example

   Open practice chapter

3. Grade 9 · Chapter 483

   Classify line-system outcomes · practice 53

   Solve the simultaneous equations y = -1x and y = -1.5x + (-8). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

   Question · Worked solution · Animated example

   Open practice chapter

4. Grade 9 · Chapter 484

   Connect symmetry and quadratic values · practice 53

   For y = -1(x − (-2.5))² + (-0.5), find y at x = 2 and identify the vertex. Follow the calculation, then test the quantities in the animated example.

   Question · Worked solution · Animated example

   Open practice chapter

5. Grade 9 · Chapter 485

   Explain a binomial area product · practice 52

   Evaluate (x + 4)(x + 8) at x = 4 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.

   Question · Worked solution · Animated example

   Open practice chapter

6. Grade 9 · Chapter 486

   Preserve function-machine order · practice 53

   Let f(u) = 2u + (5) and g(u) = u². Find f(g(-3)) and g(f(-3)). Follow the calculation, then test the quantities in the animated example.

   Question · Worked solution · Animated example

   Open practice chapter

7. Grade 9 · Chapter 487

   Solve a two-direction distance condition · practice 52

   Solve |x − (-3)| = 6.5. Follow the calculation, then test the quantities in the animated example.

   Question · Worked solution · Animated example

   Open practice chapter

8. Grade 9 · Chapter 488

   Compare repeated growth factors · practice 53

   Start at 6 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.

   Question · Worked solution · Animated example

   Open practice chapter

9. Grade 9 · Chapter 489

   Verify an algebraic solution · practice 54

   Solve 5x + (11) = 7, then check by substitution. Follow the calculation, then test the quantities in the animated example.

   Question · Worked solution · Animated example

   Open practice chapter

10. Grade 9 · Chapter 490

    Test a complete solution ray · practice 54

    Solve -2x ≤ -16, including the boundary. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

    Open practice chapter

11. Grade 9 · Chapter 491

    Interpret signed slope and intercept · practice 51

    For the line y = -0.5x + (-8), find y when x = 3 and identify the slope and vertical intercept. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

    Open practice chapter

12. Grade 9 · Chapter 492

    Classify line-system outcomes · practice 54

    Solve the simultaneous equations y = 3x and y = 1.5x + (6). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

    Open practice chapter

13. Grade 9 · Chapter 493

    Connect symmetry and quadratic values · practice 54

    For y = 1.5(x − (0.5))² + (-4), find y at x = 2 and identify the vertex. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

    Open practice chapter

14. Grade 9 · Chapter 494

    Preserve function-machine order · practice 54

    Let f(u) = 1u + (-1) 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.

    Question · Worked solution · Animated example

    Open practice chapter

15. Grade 9 · Chapter 495

    Solve a two-direction distance condition · practice 53

    Solve |x − (5)| = 3. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

    Open practice chapter

16. Grade 9 · Chapter 496

    Compare repeated growth factors · practice 54

    Start at 8 and apply a -5% change during each of 6 complete periods. Find the final amount. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

    Open practice chapter

17. Grade 9 · Chapter 497

    Verify an algebraic solution · practice 55

    Solve 4x + (-9) = -4, then check by substitution. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

    Open practice chapter

18. Grade 9 · Chapter 498

    Test a complete solution ray · practice 55

    Solve -4x ≤ 7, including the boundary. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

    Open practice chapter

19. Grade 9 · Chapter 499

    Interpret signed slope and intercept · practice 52

    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

    Open practice chapter

20. Grade 9 · Chapter 500

    Classify line-system outcomes · practice 55

    Solve the simultaneous equations y = 0x and y = -1.5x + (0). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

    Open practice chapter