Use functions to model relationships between quantities: Construct a function to model a linear relationship between two quantities. Determine the rate of change and initial value of the function from a description of a relationship or from two (x, y) values, including reading these from a table or from a graph. Interpret the rate of change and initial value of a linear function in terms of the situation it models, and in terms of its graph or a table of values.

Supports the following Standards of Mathematical Practice

• 1 Make sense of problems and persevere in solving them. • 2 Reason abstractly and quantitatively. • 3 Construct viable arguments and critique the reasoning of others. • 4 Model with mathematics. • 5 Use appropriate tools strategically. • 6 Attend to precision. • 7 Look for and make use of structure.