SOLUTION: you go to dinner and decide to leave an 18% tip for the server. you had $72 when you entered the restaurant. write a function rule f(m) where m is the amount of money that the meal

Algebra ->  Functions -> SOLUTION: you go to dinner and decide to leave an 18% tip for the server. you had $72 when you entered the restaurant. write a function rule f(m) where m is the amount of money that the meal      Log On


   

Question 684797: you go to dinner and decide to leave an 18% tip for the server. you had $72 when you entered the restaurant. write a function rule f(m) where m is the amount of money that the meal costs before the tip and the function represents the total amount of the meal with the tip included. what is the possible domain of the function (rounded to the nearest cent)? what is possible range (rounded to the nearest cent)?
(assume tax is not applicable.)
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+m+ = cost of meal before tip
+f%28m%29+ = cost of meal plus tip
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+f%28m%29+=+m+%2B+.18m+
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It is given that
+f%28m%29+%3C=+72+
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If I say that +m+%2B+.18m+%3C+72+
+1.18m+%3C=+72+
+m+%3C=+61.02+
The domain of the function is
+0+%3C+m+%3C=+61.02+
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The range of +f%28m%29+ is
+0+%3C+f%28m%29+%3C=+72+