At 4pm, the temperature started to change drastically. Each hour, for three hours , the temperature decreased by 7•F which expression best shows another way to write the product for the temperature change?

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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the correct answer is c