Gina’s MAT 130 Archived Resources

Tips

Here are some of my tips for success in MAT 130: 
  • Always attend class and take thorough notes.
  • Work on practice problems after every class. Don’t be afraid to see a tutor, the professor or myself if you have questions. Circle any mistakes you make in another color ink so that you can clearly see and learn from your mistakes.
  • Make friends in class and form a study group.
  • Make flashcards and use them to make sure you can explain concepts from the course and have any necessary formulas, algorithms, etc. memorized.
  • Always take the time to learn and understand the concepts; when you understand the concepts in math, the corresponding problems should make much more sense.
  • Attend SI sessions!

6 Tips for Productivity

Check out this picture to help visualize the “function as a machine” idea:

function as a machine

 

Take a look at the picture below that helps you visual how composite functions work:

diagram-of-composition-of-functions

 

Check out these examples of inverse functions! Remember that a function and its inverse are symmetric over the line y=x.

Inverse Function Graph 2

Inverse_Function_Graph

 

Check out this nice summary of the rules of exponents and examples below:

Exponent Laws

Are you confused about the formulas we use for financial models, or have trouble figuring out which numbers represent which variables? Check out the below pictures:

formula-compound-interest

continously-compounded-interest-formula

Remember that the principal is the amount of money we have now while A is the amount we’ll have in the future (after t years!). Also keep mind that we may be given r as a percentage and we need it to be in decimal form when we use the formula. Another common mistake I see students make with these formulas is that they think “e” is a variable – remember that e is a constant number like pi!

 

Videos and Handouts

Monday’s worksheet

Tuesday’s worksheet

Monday’s practice problems

Tuesday’s practice problems

Still having some trouble graphing piece-wise functions? Take a look at this video:

 

Want a quick (and fun!) review on how to solve equations involving exponential expressions? Watch this video: