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Grade 9 practice chapters

1. Grade 9 · Chapter 21

   Test a complete solution ray · practice 3

   Solve 4x ≤ 23, including the boundary. Follow the calculation, then test the quantities in the animated example.

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2. Grade 9 · Chapter 22

   Interpret signed slope and intercept · practice 3

   For the line y = 0x + (3), 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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3. Grade 9 · Chapter 23

   Classify line-system outcomes · practice 3

   Solve the simultaneous equations y = 0x and y = 3x + (-5). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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4. Grade 9 · Chapter 24

   Connect symmetry and quadratic values · practice 3

   For y = -1.5(x − (2.5))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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5. Grade 9 · Chapter 25

   Explain a binomial area product · practice 3

   Evaluate (x + 2)(x + 4) at x = 3.5 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.

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6. Grade 9 · Chapter 26

   Preserve function-machine order · practice 3

   Let f(u) = 1u + (-1) 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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7. Grade 9 · Chapter 27

   Solve a two-direction distance condition · practice 3

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

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8. Grade 9 · Chapter 28

   Compare repeated growth factors · practice 3

   Start at 4 and apply a -15% 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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9. Grade 9 · Chapter 29

   Verify an algebraic solution · practice 4

   Solve 7x + (-8) = 31, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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10. Grade 9 · Chapter 30

    Test a complete solution ray · practice 4

    Solve -6x ≤ -3, including the boundary. Follow the calculation, then test the quantities in the animated example.

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11. Grade 9 · Chapter 31

    Interpret signed slope and intercept · practice 4

    For the line y = -1.5x + (0), 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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12. Grade 9 · Chapter 32

    Classify line-system outcomes · practice 4

    Solve the simultaneous equations y = 1x and y = 3x + (3). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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13. Grade 9 · Chapter 33

    Connect symmetry and quadratic values · practice 4

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

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14. Grade 9 · Chapter 34

    Explain a binomial area product · practice 4

    Evaluate (x + 8)(x + 8) 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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15. Grade 9 · Chapter 35

    Connect powers and reciprocals · practice 2

    Evaluate 6 raised to the integer power 2. Follow the calculation, then test the quantities in the animated example.

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16. Grade 9 · Chapter 36

    Preserve function-machine order · practice 4

    Let f(u) = 4u + (5) 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 37

    Solve a two-direction distance condition · practice 4

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

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18. Grade 9 · Chapter 38

    Compare repeated growth factors · practice 4

    Start at 5 and apply a -20% 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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19. Grade 9 · Chapter 39

    Verify an algebraic solution · practice 5

    Solve 6x + (-3) = 19, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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20. Grade 9 · Chapter 40

    Test a complete solution ray · practice 5

    Solve -8x ≤ 20, including the boundary. Follow the calculation, then test the quantities in the animated example.

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