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Grade 9 practice chapters

1. Grade 9 · Chapter 221

   Verify an algebraic solution · practice 24

   Solve 3x + (-10) = 38, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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2. Grade 9 · Chapter 222

   Test a complete solution ray · practice 24

   Solve 6x ≤ 21, including the boundary. Follow the calculation, then test the quantities in the animated example.

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3. Grade 9 · Chapter 223

   Interpret signed slope and intercept · practice 21

   For the line y = -2.5x + (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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4. Grade 9 · Chapter 224

   Classify line-system outcomes · practice 24

   Solve the simultaneous equations y = 0.5x and y = 0.5x + (1). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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5. Grade 9 · Chapter 225

   Connect symmetry and quadratic values · practice 24

   For y = 2(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.

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6. Grade 9 · Chapter 226

   Explain a binomial area product · practice 24

   Evaluate (x + 3)(x + 3) 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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7. Grade 9 · Chapter 227

   Preserve function-machine order · practice 24

   Let f(u) = 4u + (-3) 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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8. Grade 9 · Chapter 228

   Solve a two-direction distance condition · practice 24

   Solve |x − (4)| = 5.5. Follow the calculation, then test the quantities in the animated example.

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9. Grade 9 · Chapter 229

   Compare repeated growth factors · practice 24

   Start at 6 and apply a -30% change during each of 8 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 230

    Verify an algebraic solution · practice 25

    Solve 2x + (-5) = 26, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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11. Grade 9 · Chapter 231

    Test a complete solution ray · practice 25

    Solve -8x ≤ -5, including the boundary. Follow the calculation, then test the quantities in the animated example.

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12. Grade 9 · Chapter 232

    Interpret signed slope and intercept · practice 22

    For the line y = -4x + (1), 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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13. Grade 9 · Chapter 233

    Classify line-system outcomes · practice 25

    Solve the simultaneous equations y = -2.5x and y = -2.5x + (-5). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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14. Grade 9 · Chapter 234

    Connect symmetry and quadratic values · practice 25

    For y = -2(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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15. Grade 9 · Chapter 235

    Explain a binomial area product · practice 25

    Evaluate (x + 1)(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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16. Grade 9 · Chapter 236

    Preserve function-machine order · practice 25

    Let f(u) = 3u + (4) 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.

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17. Grade 9 · Chapter 237

    Solve a two-direction distance condition · practice 25

    Solve |x − (-5)| = 2.5. Follow the calculation, then test the quantities in the animated example.

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18. Grade 9 · Chapter 238

    Compare repeated growth factors · practice 25

    Start at 7 and apply a -35% change during each of 5 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 239

    Verify an algebraic solution · practice 26

    Solve 1x + (0) = 14, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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20. Grade 9 · Chapter 240

    Test a complete solution ray · practice 26

    Solve -2x ≤ 19, including the boundary. Follow the calculation, then test the quantities in the animated example.

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