Math Lecture 1.2 - Example- x=-5, -2, 3, -5. y= 0, 4, 7, 5....

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Allen Williams Math Modeling Notes Section 1.1 - Functions Examples- 1.) f(x)=7x-5 2.) f(1)= 2 3.) f(-1)= -12 4.) g(x)= -5+ 7y- (this is the same as f(x), just in different format. - When you create a graph you have a vertical line test. - If it passes the vertical line test then it is a function. - If it is a circle in the graph it is not a function. - If it is a linear line going across the graph, it is probably a function.
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Unformatted text preview: Example- x=-5, -2, 3, -5. y= 0, 4, 7, 5. Answer- Since the –5 repeats on the value of x, it is not a function. Example- x= -5, -2, 3, 4. y=0, 4, 0, 7. Answer- since it does not repeat the x value it is a function. Example- Domain of a function- x> 2 Answer- [2, infinity) The domains and interval notations are key to figure out if a function is a function or not....
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This note was uploaded on 03/17/2011 for the course MATHMATICS 1101 taught by Professor Zhong during the Spring '11 term at Georgia State.

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Math Lecture 1.2 - Example- x=-5, -2, 3, -5. y= 0, 4, 7, 5....

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