5. State which type of relation, linear, quadratic or exponential would best model each of the situations described below. Provide reasoning for your answer.

a) The thermometer showed that the temperature outside increased about 3 degrees every hour.

b) The member's contract included an annual salary increase of 2.5%.

c) The height of a ball thrown up in the air.

d) The doctor instructed the patient to decrease her medication by half each week until she no longer needs to take it.

( I am currently working on distinguishing exponential relations, I don't know how to tell the difference between linear. quadratic and exponential relations, in word problems) (If you could put the answer, and explain exactly how you got them or if you could show me the steps on how to do it it would be amazing)