Direct variation

  1. What is the model for direct variation?
If y varies directly with x find the slope and constant of variation as well as the linear eqation that reprsents the realtion
  1. x = 2 y = 10
  2. x = 22 y = 11
  3. x = 16.5 y = 3.3


  4. If the grade you get varies directly with the amount of time you study, during the 3rd quarter you got a 90% and averaged 30 minutes of studying. If you increase the average study time to 32 minutes what will your grade be?