Rose has $40 in the bank and is saving $10 a week. Identify the domain and range.
Can you walk me through this, no matter what I try I get it marked wrong.
What she saves is a function of number of weeks, say it is n.
f(n) = 40+10.n where n is the number of weeks.
Now by definition of domain, it is all the possible values n can have. In this case it is non-negative integer. Since she might not save even for 1 week, we have to consider the case when n = 0.
Domain : set of all non-negative integers.
Range : 40+10.n where n is a non-negative integer.
I hope it helps.
What she saves is a function of number of weeks, say it is n.
f(n) = 40+10.n where n is the number of weeks.
Now by definition of domain, it is all the possible values n can have. In this case it is non-negative integer. Since she might not save even for 1 week, we have to consider the case when n = 0.
Domain : set of all non-negative integers.
Range : 40+10.n where n is a non-negative integer.
I hope it helps.
