Steply

Algebra 1

81 lessons · 1726 problems solved step by step

  1. Evaluate expressions · put numbers in for letters (22 problems)
  2. Parts of an expression · terms, coefficients, constants (21 problems)
  3. Words to expressions (22 problems)
  4. Simplify expressions · like terms, open brackets (22 problems)
  5. Equivalent expressions · simplify, compare, check with a number (20 problems)
  6. Linear equations · one step, two steps, letter on both sides (24 problems)
  7. Linear equations · brackets, fractions, decimals, no solution, every number (24 problems)
  8. Proportions (20 problems)
  9. Direct and inverse variation (21 problems)
  10. Literal equations · rearrange a formula (23 problems)
  11. Changing the subject when it appears twice (20 problems)
  12. Inequalities · one and two steps, number line (24 problems)
  13. Compound inequalities · and, or (22 problems)
  14. Compound inequalities with and / or (23 problems)
  15. Absolute value equations (21 problems)
  16. |u| = |v| equations (22 problems)
  17. Absolute value inequalities (22 problems)
  18. Coordinate plane · plotting points (20 problems)
  19. Quadrants (21 problems)
  20. Polygons on the grid · side lengths from the corners, perimeter, area (20 problems)
  21. Slope from two points (22 problems)
  22. Graphing y = mx + b (20 problems)
  23. Graphing with a table (20 problems)
  24. Linear or not · the same change for each 1 of x; x only to the power 1 (21 problems)
  25. Equation of a line from a table or a story · rate of change, start value, y = mx + b (20 problems)
  26. Compare two functions · rate of change and start value from an equation, a table or two points (20 problems)
  27. Distance-time graphs · speed = slope, flat = stopped (20 problems)
  28. Speed-time graphs · acceleration = slope, distance = area (20 problems)
  29. Equation of a line through two points (22 problems)
  30. Checking a solution (25 problems)
  31. Systems of equations · substitution, elimination (22 problems)
  32. Solving by substitution (21 problems)
  33. Three equations in x, y, z (20 problems)
  34. Exponent rules (22 problems)
  35. Scientific notation (20 problems)
  36. From scientific notation (21 problems)
  37. Polynomials · add, subtract, multiply brackets (20 problems)
  38. Expanding three brackets (20 problems)
  39. Factoring (20 problems)
  40. Factoring completely (22 problems)
  41. Sum and difference of cubes (21 problems)
  42. Solving by factoring (20 problems)
  43. Factor by grouping (21 problems)
  44. Simplifying square roots (20 problems)
  45. Multiplying square roots (21 problems)
  46. Dividing square roots (21 problems)
  47. Square roots with letters (21 problems)
  48. Higher roots (24 problems)
  49. Rational exponents (23 problems)
  50. Rationalising a two-term bottom with its partner (22 problems)
  51. Quadratic equations · square root, factoring, formula (22 problems)
  52. Completing the square (20 problems)
  53. Completing the square with fractions (23 problems)
  54. The discriminant (23 problems)
  55. Choosing a method (23 problems)
  56. Quadratic word problems (21 problems)
  57. Sum and product of the roots · the equation from its roots (20 problems)
  58. Parabolas · graph and vertex (20 problems)
  59. Exponential growth and decay (20 problems)
  60. Linear or exponential (21 problems)
  61. Word problems part 1 · numbers, cost, consecutive, ages, perimeter (22 problems)
  62. Word problems part 2 · distance, two kinds with one total, two plans, ages then, price before a percent change (24 problems)
  63. Coin problems · how many of each coin, money in cents (20 problems)
  64. Price mixture · two items into one mix (20 problems)
  65. Work-rate · two people, one job, the whole job = 1 (20 problems)
  66. Word inequalities · at most, at least, a whole number answer (20 problems)
  67. Motion with an unknown speed · minutes to hours (20 problems)
  68. Simple interest · I = P × r × t (20 problems)
  69. Triangle-angle stories · the three angles make 180° (20 problems)
  70. Tickets with a link · two kinds, one link, all the money (20 problems)
  71. Work-rate · one person's time (20 problems)
  72. Percent mixtures (20 problems)
  73. Vertical and horizontal lines (22 problems)
  74. Graphing Ax + By = C (22 problems)
  75. Write Ax + By = C as y = mx + b (24 problems)
  76. Point-slope form (22 problems)
  77. Parallel and perpendicular lines (26 problems)
  78. Graphing inequalities (22 problems)
  79. Systems by graphing (22 problems)
  80. Systems of inequalities (21 problems)
  81. Linear programming · the best corner of the region (20 problems)