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Mathematics 20 Online
OpenStudy (anonymous):

this isn't a function is it? click to see drawing

OpenStudy (anonymous):

|dw:1354427292145:dw|

OpenStudy (anonymous):

it is not a function

OpenStudy (anonymous):

|dw:1354427311961:dw|that would be a function, correct?

OpenStudy (anonymous):

#2 it is a function

OpenStudy (anonymous):

what would the definition of a function be? a line that leaves it's quadrant into the positive?

OpenStudy (anonymous):

that is also not parallel with x or y?

OpenStudy (mathstudent55):

|dw:1354427472006:dw| Easy test for a function when you have it graphed. Think of a vertical line scanning it from left to right. If it intersects more than 1 point, it's not a function.

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