Exponents Question
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Grade 11 Exponents CCSS: HSF-BF.B.5, HSF-LE.A.4
Forest fires can spread very quickly, and their growth can be considered exponential. Although there are many other factors, the growth of a forest fire from a small area can be approximately modeled by the exponential function F(t)=aebt, where t is in hours and F measures the land area affected in square kilometers. If a certain forest fire covered 0.5 square kilometers at 1:00 pm, and then grew to 3.2 square kilometers at 3:00 pm, at about what time would the fire cover 10 square kilometers?
- 4:12 pm
- 6:12 pm
- 8:00 pm
- 9:12 pm