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Worksheet: Quadratic Inequalities

Q1:

Solve the inequality .

  • A
  • B
  • C
  • D

Q2:

Solve the inequality .

  • A
  • B
  • C
  • D

Q3:

Solve the inequality .

  • A
  • B
  • C
  • D

Q4:

Which of the following describes the solution set of the inequality ?

  • A
  • B
  • C
  • D
  • E

Q5:

Write the interval describing all solutions to the inequality .

  • A
  • B
  • C
  • D
  • E

Q6:

Find all solutions to the inequality . Write your answer as an interval.

  • A
  • B
  • C
  • D

Q7:

A cell phone company has the following cost and revenue functions: 𝐢 ( π‘₯ ) = 8 π‘₯ βˆ’ 6 0 0 π‘₯ + 2 1 5 0 0 2 and 𝑅 ( π‘₯ ) = βˆ’ 3 π‘₯ + 4 8 0 π‘₯ 2 . State the range for the number of cell phones they can produce while making a profit. Round your answers to the nearest integer that guarantees a profit.

  • A28–71 cell phones
  • B27–70 cell phones
  • Cmore than 160 cell phones
  • D28–70 cell phones

Q8:

Find the interval describing all solutions to the inequality .

  • A
  • B
  • C
  • D

Q9:

Given , find the solution set of the inequality by determining the sign of .

  • A is negative when , which is the solution set of the inequality.
  • B is negative when , which is the solution set of the inequality.
  • C is negative when , which is the solution set of the inequality.
  • D is negative when , which is the solution set of the inequality.

Q10:

Write the interval describing all solutions to the inequality .

  • A
  • B
  • C
  • D
  • E

Q11:

Solve the inequality .

  • A
  • B
  • C
  • D
  • E