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Course: Functions 237+ > Unit 6

Lesson 6: Exponential functions from tables & graphs
Math Content
Functions 237+
Exponential functions
Exponential functions from tables & graphs
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Connecting exponential graphs with contexts

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Problem

At the moment a hot iron rod is plunged into freezing water, the difference between the rod's and the water's temperatures is 100° Celsius. This causes the iron to cool and the temperature difference drops by 60% every second.
Which graph shows the temperature difference y (degrees Celsius) after x seconds?
Choose 1 answer: