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Math help: An international food festival charges for admission and for each sample of food. Admission  and 4  samples  cost  ​$ 6.75.  Admission and  9  samples  cost ​ $ 11.75.  Write a linear function rule to model the cost y for any number of samples x.

 Jan 23, 2021
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admission and 9     minus    admission and 4      will give you the cost of 5 samples

   11.75                       -           6.75                      =  $ 5    for five samples   <===== each sample costs $ 1

so for admission + 4 samples

  6.75 = admission + 4

2.75 = admission

 

y = $ 2.75 + $1 (x)

y =  $ 2.75 + $ x

y = 2.75 + x             would be the cost   2.75 to get in....then $1 for each sample

 Jan 23, 2021

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