Math With Amar · Guided practice
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Each chapter gives you a distinct mathematical scenario: one question to attempt, a hint, a worked solution, and an animated example you can control.
10,000 questions · 10,000 animated scenarios · 14 study levels
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Grade labels are starting points; school sequences vary. Advanced chapters assume the prerequisites listed on their pages.
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Grade 9 practice chapters
61–80 of 750 matching chapters · Page 4 of 38
Clear filtersGrade 9 · Chapter 61
Classify line-system outcomes · practice 7
Solve the simultaneous equations y = 2.5x and y = 3x + (-2). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 62
Connect symmetry and quadratic values · practice 7
For y = -0.5(x − (2.5))² + (-2), find y at x = 2 and identify the vertex. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 63
Explain a binomial area product · practice 7
Evaluate (x + 7)(x + 8) at x = 5 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 64
Connect powers and reciprocals · practice 4
Evaluate 6 raised to the integer power 4. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 65
Preserve function-machine order · practice 7
Let f(u) = 1u + (0) 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.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 66
Solve a two-direction distance condition · practice 7
Solve |x − (4)| = 1.5. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 67
Compare repeated growth factors · practice 7
Start at 8 and apply a -35% change during each of 7 complete periods. Find the final amount. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 68
Verify an algebraic solution · practice 8
Solve 3x + (12) = -17, then check by substitution. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 69
Test a complete solution ray · practice 8
Solve -6x ≤ -8, including the boundary. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 70
Interpret signed slope and intercept · practice 8
For the line y = 3.5x + (6), 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
Open practice chapterGrade 9 · Chapter 71
Classify line-system outcomes · practice 8
Solve the simultaneous equations y = -0.5x and y = 0x + (-8). Classify the number of solutions. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 72
Connect symmetry and quadratic values · practice 8
For y = 2(x − (-1))² + (3.5), find y at x = 2 and identify the vertex. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 73
Explain a binomial area product · practice 8
Evaluate (x + 2)(x + 7) at x = 3 by finding all four rectangle-area parts. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 74
Connect powers and reciprocals · practice 5
Evaluate 2 raised to the integer power -2. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 75
Preserve function-machine order · practice 8
Let f(u) = 4u + (6) 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.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 76
Solve a two-direction distance condition · practice 8
Solve |x − (-5)| = 7. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 77
Compare repeated growth factors · practice 8
Start at 9 and apply a -40% change during each of 4 complete periods. Find the final amount. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 78
Verify an algebraic solution · practice 9
Solve 2x + (-8) = 53, then check by substitution. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 79
Test a complete solution ray · practice 9
Solve -8x ≤ 15, including the boundary. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapterGrade 9 · Chapter 80
Interpret signed slope and intercept · practice 9
For the line y = 2.5x + (-10), find y when x = 3 and identify the slope and vertical intercept. Follow the calculation, then test the quantities in the animated example.
Question · Worked solution · Animated example
Open practice chapter