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OpenStudy (sunfire):
alright so I need help
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OpenStudy (sunfire):
OpenStudy (welshfella):
For a relation to be a function there must be no duplicate entries for x.
OpenStudy (sunfire):
okay
OpenStudy (sunfire):
do you happen to know how I would do so?
OpenStudy (welshfella):
well check part A - are all the values of x different.
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OpenStudy (sunfire):
yes
OpenStudy (welshfella):
OK That means it is a function.
OpenStudy (sunfire):
okay
OpenStudy (welshfella):
Part B you find f(150) by replacing the x in 20 + 3x and working it out
OpenStudy (sunfire):
okay
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OpenStudy (welshfella):
the result will be the cost of hiring the boat for 150 hours.
OpenStudy (sunfire):
which is 470?
OpenStudy (welshfella):
yes $470
OpenStudy (welshfella):
sorry I have to go right now.
OpenStudy (sunfire):
okay
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OpenStudy (sunfire):
bye
OpenStudy (sunfire):
all I need is the last one now
OpenStudy (sunfire):
please?
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