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Grade 9 practice chapters

1. Grade 9 · Chapter 201

   Solve a two-direction distance condition · practice 21

   Solve |x − (-3)| = 7. Follow the calculation, then test the quantities in the animated example.

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2. Grade 9 · Chapter 202

   Compare repeated growth factors · practice 21

   Start at 3 and apply a -15% 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 203

   Verify an algebraic solution · practice 22

   Solve 5x + (5) = -20, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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4. Grade 9 · Chapter 204

   Test a complete solution ray · practice 22

   Solve -2x ≤ 24, including the boundary. Follow the calculation, then test the quantities in the animated example.

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5. Grade 9 · Chapter 205

   Interpret signed slope and intercept · practice 19

   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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6. Grade 9 · Chapter 206

   Classify line-system outcomes · practice 22

   Solve the simultaneous equations y = -0.5x and y = 0.5x + (-7). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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7. Grade 9 · Chapter 207

   Connect symmetry and quadratic values · practice 22

   For y = 1.5(x − (-0.5))² + (2.5), find y at x = 2 and identify the vertex. Follow the calculation, then test the quantities in the animated example.

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8. Grade 9 · Chapter 208

   Explain a binomial area product · practice 22

   Evaluate (x + 2)(x + 8) at x = 2 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 209

   Preserve function-machine order · practice 22

   Let f(u) = 2u + (-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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10. Grade 9 · Chapter 210

    Solve a two-direction distance condition · practice 22

    Solve |x − (5)| = 3.5. Follow the calculation, then test the quantities in the animated example.

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11. Grade 9 · Chapter 211

    Compare repeated growth factors · practice 22

    Start at 4 and apply a -20% 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 212

    Verify an algebraic solution · practice 23

    Solve 4x + (10) = 49, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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13. Grade 9 · Chapter 213

    Test a complete solution ray · practice 23

    Solve 4x ≤ -2, including the boundary. Follow the calculation, then test the quantities in the animated example.

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14. Grade 9 · Chapter 214

    Interpret signed slope and intercept · practice 20

    For the line y = -2x + (-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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15. Grade 9 · Chapter 215

    Classify line-system outcomes · practice 23

    Solve the simultaneous equations y = -3x and y = -2.5x + (8). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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16. Grade 9 · Chapter 216

    Connect symmetry and quadratic values · practice 23

    For y = -0.5(x − (3))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 217

    Explain a binomial area product · practice 23

    Evaluate (x + 5)(x + 6) 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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18. Grade 9 · Chapter 218

    Preserve function-machine order · practice 23

    Let f(u) = 1u + (4) 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 219

    Solve a two-direction distance condition · practice 23

    Solve |x − (-4)| = 0.5. Follow the calculation, then test the quantities in the animated example.

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20. Grade 9 · Chapter 220

    Compare repeated growth factors · practice 23

    Start at 5 and apply a -25% 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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