USING LINEAR EQUATIONS An electronics store has 20 CD players in stock. The manufacturer ships these players in boxes of 12. Write a linear function that relates the number of boxes to the total number of CD players in the store. Graph the function. STEP 1: RELATE What are the two things we are relating in this problem (what changes in this problem)? 1. ____________________________ 2. ____________________________ Which one is the dependent variable (which one of those two things depends on the other)? ________________ STEP 2: MAKE A TABLE Remember: y is always the dependent variable in your table! ANSWER A QUICK QUESTION!!! Why did I start with 20 in my table??? __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ STEP 3: MAKE A GRAPH Make sure you label your axis and pick a correct scale for each one!! Don’t forget to title the graph too. STEP 4: WRITE AN EQUATION What is slope-intercept form? ___________________________ What is the slope of your line in step 3: _________________ What is the y-intercept of your line in step 3: _____________ Write an equation for your graph in slope intercept form: __________________________ Follow-Up Questions 1. What does the y-intercept represent in the problem? 2. What does the slope represent in the problem??