SAT Math · Algebra

Linear inequalities in one or two variables practice questions

Each free question on this page comes with its answer and a full explanation, and each one is marked easy, medium or hard.

  1. Question 6 · easyWhich of the following is equivalent to -3x + 7 ≤ 22?
  2. Question 8 · hardFor x ≥ 0 and y ≥ 0 satisfying x + 3y ≤ 15 and 2x + y ≤ 10, what is the greatest possible value of 3x + 5y?
  3. Question 29 · mediumWhat is the solution set of the system x > -3, x ≤ 5, and 2x - 1 < 9?
  4. Question 30 · easyWhich statement is true about the graph of y ≤ 3x - 2?
  5. Question 31 · easyA parking garage charges a $5 base fee plus $2.50 for each hour parked. A customer wants to pay no more than $25 total. What is…
  6. Question 60 · mediumThe boundary lines of y ≥ 2x - 4 and y ≤ -x + k intersect at the point where x = 2. What is the value of k?
  7. Question 126 · easyAn elevator can carry at most 2,000 pounds. If the average person weighs 165 pounds, what is the maximum number of people who…
  8. Question 127 · mediumWhich inequality is equivalent to |x - 5| ≤ 3?
  9. Question 128 · mediumA region in the coordinate plane is defined by x ≥ 0, y ≥ 0, and x + y ≤ 10. Which statement must be true for every point (x, y)…
  10. Question 129 · mediumFor the system x > k and x < 10 to have at least one solution, k must be less than what value?
  11. Question 146 · mediumWhich of the following is equivalent to -2(x-3) > 10?
  12. Question 147 · hardFor x ≥ 0 and y ≥ 0 satisfying x + y ≥ 6 and 2x + y ≥ 10, what is the smallest possible value of 4x + 3y?
  13. Question 168 · easyWhich statement is true about the graph of y < 2x + 3?
  14. Question 186 · mediumA parking lot must hold no fewer than 50 cars and no more than 120 cars at any time. What is the width of the range of possible…
  15. Question 191 · mediumA thermostat is set so that the temperature T, in degrees Celsius, satisfies -5 ≤ T ≤ 30. If an additional rule requires T > 10,…
  16. Question 207 · easyWhich of the following is equivalent to -x/3 ≤ 4?
  17. Question 226 · easyA delivery van can carry at most 5,000 pounds. If each package weighs 210 pounds on average, what is the maximum number of…
  18. Question 227 · hardFor x ≥ 0 and y ≥ 0 satisfying x + 2y ≤ 12 and 3x + y ≤ 16, what is the greatest possible value of 2x + 3y?
  19. Question 230 · easyA moving truck rental costs no more than $150 per day. The base fee is $40, plus $22 per hour of use. What is the maximum number…
  20. Question 246 · easyWhich of the following is equivalent to -3x + 5 ≤ 20?
  21. Question 247 · hardFor x ≥ 0 and y ≥ 0 satisfying 2x + y ≤ 14 and x + 3y ≤ 17, what is the greatest possible value of 3x + 2y?
  22. Question 250 · mediumWhat is the smallest integer value of x that satisfies both x > -3 and 2x - 7 > 5?
  23. Question 265 · hardFor x ≥ 0 and y ≥ 0 satisfying x + y ≤ 8 and 3x + y ≤ 16, what is the greatest possible value of x + 2y?
  24. Question 271 · easyWhich statement is true about the graph of y ≥ -2x + 6?
  25. Question 287 · hardFor x ≥ 0 and y ≥ 0 satisfying x + 3y ≤ 17 and 2x + y ≤ 14, what is the greatest possible value of 4x + 3y?
  26. Question 291 · easyWhich of the following is equivalent to -4x + 9 ≥ 25?
  27. Question 308 · easyA shipping company charges no more than $80 per package. The base fee is $15, plus $6.50 per pound. What is the maximum whole…
  28. Question 322 · hardFor x + y ≤ 20 and x - y ≥ 4, what is the largest integer value of y for which a valid value of x exists?

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