Practice Step 3: Analyze sign changes - 2.3 | 9. Quadratic Inequalities | IB Class 10 Mathematics – Group 5, Algebra
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Academics
Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Professional Courses
Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

games

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Solve x^2 - 1 < 0.

💡 Hint: Find roots at x = -1 and x = 1.

Question 2

Easy

Solve x^2 - 9 ≥ 0.

💡 Hint: Identify roots and test intervals.

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 is the first step in analyzing sign changes for a quadratic inequality?

  • Identify roots
  • Choose test points
  • Divide the number line

💡 Hint: Think about the points where the expression equals zero.

Question 2

True or False: The sign of a quadratic expression changes at its roots.

  • True
  • False

💡 Hint: What happens to the graph at zero?

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You are given the inequality x^2 - 6x + 5 < 0. Find the roots, intervals, test points, and represent the solution graphically.

💡 Hint: Factor to find the roots and test each interval.

Question 2

Given the inequality -x^2 + 3x + 4 ≥ 0, determine roots, evaluate signs, and express the solution set in interval notation.

💡 Hint: Focus on where the expression is above or equal to zero.

Challenge and get performance evaluation