I. Determine the following statements. write DV if describes direct variation and IV if describes inverse variation.

___1.The grade of a student to his effort in studying his lessons.
___2.The salary of an employee to the number of hours devoted to work.
___3.The time to drive a certain distance to the rate of speed.
___4.The cost of tricycle fare to the distance travelled.
___5.The members of the family to the budget of their daily food. ​