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Grade 9 practice chapters

1. Grade 9 · Chapter 41

   Interpret signed slope and intercept · practice 5

   For the line y = -3x + (-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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2. Grade 9 · Chapter 42

   Classify line-system outcomes · practice 5

   Solve the simultaneous equations y = -2x and y = 0x + (-3). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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3. Grade 9 · Chapter 43

   Connect symmetry and quadratic values · practice 5

   For y = -1(x − (2.5))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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4. Grade 9 · Chapter 44

   Explain a binomial area product · practice 5

   Evaluate (x + 3)(x + 7) 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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5. Grade 9 · Chapter 45

   Preserve function-machine order · practice 5

   Let f(u) = 3u + (-1) and g(u) = u². Find f(g(3)) and g(f(3)). Follow the calculation, then test the quantities in the animated example.

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6. Grade 9 · Chapter 46

   Solve a two-direction distance condition · practice 5

   Solve |x − (5)| = 8. Follow the calculation, then test the quantities in the animated example.

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7. Grade 9 · Chapter 47

   Compare repeated growth factors · practice 5

   Start at 6 and apply a -25% 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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8. Grade 9 · Chapter 48

   Verify an algebraic solution · practice 6

   Solve 5x + (2) = 7, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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9. Grade 9 · Chapter 49

   Test a complete solution ray · practice 6

   Solve 2x ≤ -5, including the boundary. Follow the calculation, then test the quantities in the animated example.

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10. Grade 9 · Chapter 50

    Interpret signed slope and intercept · practice 6

    For the line y = -3.5x + (10), 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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11. Grade 9 · Chapter 51

    Classify line-system outcomes · practice 6

    Solve the simultaneous equations y = -1x and y = 0x + (5). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.

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12. Grade 9 · Chapter 52

    Connect symmetry and quadratic values · practice 6

    For y = 1.5(x − (-1))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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13. Grade 9 · Chapter 53

    Explain a binomial area product · practice 6

    Evaluate (x + 1)(x + 4) at x = 4 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.

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14. Grade 9 · Chapter 54

    Connect powers and reciprocals · practice 3

    Evaluate 3 raised to the integer power -1. Follow the calculation, then test the quantities in the animated example.

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15. Grade 9 · Chapter 55

    Preserve function-machine order · practice 6

    Let f(u) = 2u + (6) and g(u) = u². Find f(g(-0.5)) and g(f(-0.5)). Follow the calculation, then test the quantities in the animated example.

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16. Grade 9 · Chapter 56

    Solve a two-direction distance condition · practice 6

    Solve |x − (-4)| = 5. Follow the calculation, then test the quantities in the animated example.

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17. Grade 9 · Chapter 57

    Compare repeated growth factors · practice 6

    Start at 7 and apply a -30% change during each of 2 complete periods. Find the final amount. Follow the calculation, then test the quantities in the animated example.

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18. Grade 9 · Chapter 58

    Verify an algebraic solution · practice 7

    Solve 4x + (7) = -5, then check by substitution. Follow the calculation, then test the quantities in the animated example.

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19. Grade 9 · Chapter 59

    Test a complete solution ray · practice 7

    Solve 4x ≤ 18, including the boundary. Follow the calculation, then test the quantities in the animated example.

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20. Grade 9 · Chapter 60

    Interpret signed slope and intercept · practice 7

    For the line y = 4x + (-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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