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Which situation can be modeled by tossing a coin once?
A system with two possible outcomes with equal probabilities.
What is the relationship modeled by the equation y equals 8x plus 17?
A linear relationship. Added: And a function.
What is the formula of distance as a function of time?
Since distance is rate multiplied by the amount of time at such a rate, this can be modeled D=rt
What term is used to describe a represntation of a thing or system and can be used as a way to test hypotheses?
A graph is a representation of a thing/system, and can be used to test a hypothesis. For example, if you have a graph of a trend you can find the function of that trend. Then, you can plug in values the graph defines--say, at 2 the graph reaches 5--and if the function works, you know you have modeled the phenomenon correctly. This function testing can work to test a hypothesis, especially in finding trends.
What do you think is the constant variable?
A parameter can be thought of as a constant variable. It is a variable for which you determine a value, or whose value you change to see its effects on the situation modeled. The term is used in Geometry, Statistics, Physics and Engineering nas well as other fields.
