MAP4C - Algebraic Models Name: THINKING 5. The mortality rate from heart attack can be modelled by the relation M - 88.8(0.9418)', where M is the number of deaths per 100 000 people and / is the number of years since 1998. Has the mortality rate increased or decreased since When will the mortality rate be one-half the rate in 1998? How do you know? [2 marks] 1998? [3 marks] What is the initial mortality rate in 1998? [1 mark]