Need help with critical concepts for College Algebra

I'm super stressed about taking College Algebra next semester. What are some of the most important concepts that I should focus on to get a good grasp on the material?

Firstly, the stress you're feeling is normal, and it's good to see you preparing beforehand. When it comes to College Algebra, focus your energy on a few fundamental concepts that will serve as the backbone for everything else you'll learn.

1. Functions: Understanding functions is crucial. Get a firm grasp on the concept of a function, how to find domain and range, and how to recognize and plot common types of functions like linear, quadratic, exponential, or logarithmic.

2. Equations: The ability to solve different types of equations is central to algebra. This includes linear equations, quadratic equations, rational equations, and systems of equations. Practice lots of problems to become comfortable with different techniques.

3. Inequalities: Similar to equations, solving inequalities is another vital concept. These involve linear, quadratic, and rational inequalities, as well as systems of inequalities.

4. Factoring: This is a method used to break down more complex expressions into their simplest parts. Mastering this skill provides a foundation for solving equations, simplifying expressions, and understanding the basic structure of polynomial functions.

5. Polynomials and Rational Functions: Understand how to add, subtract, multiply, and divide polynomials, and how to graph polynomial and rational functions.

6. Exponent Rules and Logarithms: Exponents and logarithms can seem tricky initially, but mastering these rules will be highly beneficial.

Remember to practice not only the procedures but also the underlying logic. Understanding 'why' something works can be as important as knowing 'how'. It would also be beneficial to familiarize yourself with your syllabus and the specific learning objectives for your course, as these can vary. Good luck with your studies!