Implementation of Texas Essential Knowledge and Skills for Mathematics, Grades 9-12. Students continue to build on this foundation as they expand their understanding through other mathematical experiences. Students use symbols in a variety of ways to study relationships among quantities. Functions represent the systematic dependence of one quantity on another. Students use functions to represent and model problem situations and to analyze and interpret relationships.
Equations arise as a way of asking and answering questions involving functional relationships.
Students work in many situations to set up equations and use a variety of methods to solve these equations. Techniques for working with functions and equations are essential in understanding underlying relationships. Many processes underlie all content areas in mathematics. Foundations for functions. The student understands that a function represents a dependence of one quantity on another and can be described in a variety of ways.