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OpenStudy (decarr432):
How would I solve this
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OpenStudy (decarr432):
OpenStudy (decarr432):
@mathmale
OpenStudy (decarr432):
@roadjester
OpenStudy (roadjester):
have you heard of the horizontal line test?
OpenStudy (decarr432):
No i haven't please explain
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OpenStudy (roadjester):
basically, what you want to do is draw horizontal lines, and if they intersect the graph more than once, it does not have an inverse
OpenStudy (roadjester):
|dw:1452377937464:dw|
OpenStudy (roadjester):
|dw:1452377966793:dw|
OpenStudy (roadjester):
If your graph were to intersect more than one point, it would NOT have an inverse, for example
OpenStudy (roadjester):
|dw:1452378063543:dw| A parabola, does not have an inverse
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