1. Marco and his two younger sisters would like to purchase a silver charm bracelet for their mother’s birthday. They went to the mall and found what they were looking for at Store A. In Store A, the bracelet without charms costs $85 and each charm costs $15.

Question

anonymous · Answer

B.) What would be a reasonable domain for this function based on this scenario? Explain why this is a proper domain.

anonymous · Answer

@perl @dtan5457 @SolomonZelman I really need help with this question.

anonymous · Answer

Any ideas for the question? I know that part of the domain is x is greater than or equal to 100, but I don't know what x is less than equal to

perl · Answer

the fixed cost for the bracelet is 85 dollars. and each additional charm is 15 dollars

perl · Answer

so you can use the function f(x) = 15*x + 85

perl · Answer

can you find the domain now?

anonymous · Answer

Yeah I know the function. I know part of the domain  x is greater than or equal to 100. But what number is x less than or equal to? @perl

anonymous · Answer

@mathmate can u help?

anonymous · Answer

@perl

perl · Answer

the domain are the values you can enter or plug into x , which make sense

perl · Answer

can you plug in negative x values. does it make sense to buy -2 charms?

anonymous · Answer

no

perl · Answer

ok so we can exclude negative integers

perl · Answer

what about fractions, can you buy half a charm ?

anonymous · Answer

no

perl · Answer

right :)

perl · Answer

so far we excluded negative integers and fractions (decimals). 
so you are left with whole numbers

perl · Answer

whole numbers, like 0,1,2,3,4...

anonymous · Answer

yeah i know that part srry :)

anonymous · Answer

so what do u do next?

anonymous · Answer

100<=x>=?