Ch 18: Ohio EOCE Integrated Math I: Complex Numbers

About This Chapter

Explore the engaging video lessons in this chapter to strengthen your knowledge of complex numbers as you prepare to take the Ohio EOCE - Integrated Math I exam. Self-assessment quizzes can gauge your comprehension of lesson concepts.

Ohio EOCE Integrated Math I: Complex Numbers - Chapter Summary

Preparing for the Ohio EOCE - Integrated Math I exam can require revisiting concepts you haven't explored in a few weeks. Refresh your knowledge of complex numbers by reviewing the fun videos in this chapter. In no time, you will be able to:

  • Define an imaginary number
  • Add, subtract, multiply, and divide complex numbers
  • Graph a complex number on a complex plane
  • Solve quadratics with complex numbers as the solution

This chapter allows you to get reacquainted with complex numbers at a pace that works best for you. Review the lessons from your home computer or on-the-go via your smartphone or tablet. Watch the lessons in any sequence and as often as needed until you feel confident that you understand the materials. Test your comprehension of the subject area by taking the self-assessment quiz with each chapter.

5 Lessons in Chapter 18: Ohio EOCE Integrated Math I: Complex Numbers
Test your knowledge with a 30-question chapter practice test
What is an Imaginary Number?

1. What is an Imaginary Number?

The imaginary number 'i' is the square root of -1. Although this number doesn't actually exist, pretending that it does allows us to do a bunch of crazy math that scientists use every day. Learn the basics of that number 'i' here!

How to Add, Subtract and Multiply Complex Numbers

2. How to Add, Subtract and Multiply Complex Numbers

Knowing that complex numbers exist is the first step. But that knowledge alone won't help you do much with them. Learn the basics of complex number addition, subtraction and multiplication here!

How to Divide Complex Numbers

3. How to Divide Complex Numbers

While adding, subtracting and multiplying complex numbers is pretty straightforward, dividing them can be pretty tricky. It comes down to the process of multiplying by the complex conjugate. Learn about what that is, and how to do it, here.

How to Graph a Complex Number on the Complex Plane

4. How to Graph a Complex Number on the Complex Plane

Graphing complex numbers is pretty straight forward, but it's not necessarily intuitive. Check out this lesson to learn the vocabulary and the conventions that you'll need.

How to Solve Quadratics with Complex Numbers as the Solution

5. How to Solve Quadratics with Complex Numbers as the Solution

When you solve a quadratic equation with the quadratic formula and get a negative on the inside of the square root, what do you do? The short answer is that you use an imaginary number. For the longer, more helpful answer, check out this lesson!

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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