TUTORIAL - where does y=kx come from?
Video on How to Write & Graph Direct Variation Equations (proportional relationships)
Video - how to predict after you write the equation in y=kx form
Practice:
Understanding the equation y=kx Reteach #1 KEY
Writing Equations to predict Practice #1 KEY
Writing Equations to predict Practice #2 KEY
Writing Equations to predict Practice #3 KEY
Writing Equations to predict Practice #4 KEY