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Grade 9 practice chapters

1. Grade 9 · Chapter 261

   Connect symmetry and quadratic values · practice 28

   For y = 1(x − (3))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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2. Grade 9 · Chapter 262

   Explain a binomial area product · practice 28

   Evaluate (x + 3)(x + 6) at x = 1 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.

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3. Grade 9 · Chapter 263

   Preserve function-machine order · practice 28

   Let f(u) = 4u + (-2) 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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4. Grade 9 · Chapter 264

   Solve a two-direction distance condition · practice 28

   Solve |x − (2)| = 1. Follow the calculation, then test the quantities in the animated example.

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5. Grade 9 · Chapter 265

   Compare repeated growth factors · practice 28

   Start at 10 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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6. Grade 9 · Chapter 266

   Verify an algebraic solution · practice 29

   Solve 6x + (-11) = 60, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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7. Grade 9 · Chapter 267

   Test a complete solution ray · practice 29

   Solve -8x ≤ -10, including the boundary. Follow the calculation, then test the quantities in the animated example.

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8. Grade 9 · Chapter 268

   Interpret signed slope and intercept · practice 26

   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.

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9. Grade 9 · Chapter 269

   Classify line-system outcomes · practice 29

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

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10. Grade 9 · Chapter 270

    Connect symmetry and quadratic values · practice 29

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

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11. Grade 9 · Chapter 271

    Explain a binomial area product · practice 29

    Evaluate (x + 1)(x + 3) at x = 2.5 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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12. Grade 9 · Chapter 272

    Preserve function-machine order · practice 29

    Let f(u) = 3u + (5) and g(u) = u². Find f(g(1.5)) and g(f(1.5)). Follow the calculation, then test the quantities in the animated example.

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13. Grade 9 · Chapter 273

    Solve a two-direction distance condition · practice 29

    Solve |x − (-7)| = 6.5. Follow the calculation, then test the quantities in the animated example.

    Question · Worked solution · Animated example

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14. Grade 9 · Chapter 274

    Compare repeated growth factors · practice 29

    Start at 1 and apply a 35% change during each of 8 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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15. Grade 9 · Chapter 275

    Verify an algebraic solution · practice 30

    Solve 5x + (-6) = 48, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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16. Grade 9 · Chapter 276

    Test a complete solution ray · practice 30

    Solve -2x ≤ 14, including the boundary. Follow the calculation, then test the quantities in the animated example.

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17. Grade 9 · Chapter 277

    Interpret signed slope and intercept · practice 27

    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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18. Grade 9 · Chapter 278

    Classify line-system outcomes · practice 30

    Solve the simultaneous equations y = 1x and y = -2.5x + (6). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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19. Grade 9 · Chapter 279

    Connect symmetry and quadratic values · practice 30

    For y = 1.5(x − (3))² + (-1.5), find y at x = 2 and identify the vertex. Follow the calculation, then test the quantities in the animated example.

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20. Grade 9 · Chapter 280

    Explain a binomial area product · practice 30

    Evaluate (x + 7)(x + 7) at x = 3.5 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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