Home Math 103 - Lesson 4
Classes

Assignments:
3.5:    283, 287, 291, 293, 296, 297, 303, 313, 327
3.6:    337, 339, 343, 351, 363, 371, 377, 379, 383, 385
4.1:    3, 15, 19, 21, 37, 57, 63
4.2:    79, 81, 91, 109, 119
4.3:    127, 139, 147, 157

    Section 3.5 introduces relations, functions, and functional notation.  The next section relates functions and relations to graphs.  Chapter 4 is about systems of equations.  Section 4.1 covers systems of two equations with two variables.  Sections 4.2 and 4.3 talk about word problems that can be done more easily if you use more than one variable in setting up the equations.  In 4.3, you solve mixture problems again, but they should be easier now.

    Here are videos of functions, domain and range, Systems of equations with 2 variables, and mixture problems
When you are finished, turn the homework in here at the bottom of the page.  Due dates are on the schedule.