1) Which of the following graph is exponential function that has a base 0<b<1? a) b) c) 2) Which of the following graph is exponential function that has a base b>1? a) b) c) 3) The population of a city is P=1 000 000(200.02t) where t is measured in months, what is the initial population based from the given? a) 20 000 000 b) 2 000 000 c) 1 000 000 4) A radioactive substance decays in such a way that the amount of mass remaining after t days is given by the function m(t) =13e -0.015t where m(t) is measured in kilograms. What is the mass at time t=0? a) 13 kg b) 0.15 kg c) 6.619 kg 5) A radioactive substance decays in such a way that the amount of mass remaining after t days is given by the function m(t) =13e -0.015t where m(t) is measured in kilograms. How much of the mass remains after 45 days? a) 13 kg b) 0.15 kg c) 6.619 kg 6) The population of a city is P=1 000 000(200.02t) where t is measured in months, what is the population after 50 months? a) 20 000 000 b) 1 000 000 c) 2 000 000 7) Your parents invest 1000.00Php in a savings account for 18 years for your 18th birthday. The average interest rate is 4% and is compounded every three months(quarterly). How much money will be in the bank after 18 years? Clue: n=4 a) Php 2 196.15 b) Php 2 711.41 c) Php 2 047.10 d) Php 8 313.81

Exponential Functions - Solving Word Problems

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