5
QuizMultiple Choice
Introduction to Modeling with Functions
Question 5 • (CR27) ALG 1-1200310-S2-Degele-VOL7006P
The half life of a certain substance is about 4 hours. The graph shows the decay of a 50 gram sample of the substance that is measured every hour for 9 hours.
Answer
A
y = 25(0.15)tB
y = 25(0.85)tC
y = 50(0.15)tD
y = 50(0.85)t