Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take mock test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Write the solution in interval notation for x ≥ -2.
💡 Hint: Remember to include -2 since it's a 'greater than or equal to' inequality.
Question 2
Easy
Express the solution for x < 5 in interval notation.
💡 Hint: Here, 5 is not included, so use parentheses.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What form signifies that the endpoint is included in the solution?
- (a
- b)
- [a
- b]
- (a
- b]
💡 Hint: Think about the symbols: parentheses for exclusion, brackets for inclusion.
Question 2
True or False: The solution x > 3 can be represented as [3, ∞).
- True
- False
💡 Hint: Remember the rules for including endpoints.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Determine the interval for which x² - 4 ≤ 0 and express the solution in interval notation.
💡 Hint: Factor the equation to find the roots before analyzing the sign.
Question 2
For the inequality x(x - 3) ≥ 0, write the solution in interval notation.
💡 Hint: Find where the product is non-negative, considering the endpoints.
Challenge and get performance evaluation