Originally Posted by
Jiyongie I don't understand my teacher at all! Or maybe it's just me doing something wrong..?
1) Shannon's mother brings her to an indoor playground. The admission costs $3 plus an additional fee for each half-hour of play. It costs $6 for Shannon to play for one hour. Graph the relationship.
So I have two equations:
y = 3 + (0.5)(x)(h) ---> x = fee
6 = 3 + (0.5)(x)(2)
What I don't understand is why my teacher wrote:
6 = 3 + 3h
2) An internet provider sets its rates according to the following scheme. It charges $1.25 to log-on with the service and an additional $0.25 for every 10 minutes online. Write an equation to represent the total charge, C, in dollars, as a function of time online, h (hours).
This is the same type of question as the first one..
The equation I got:
10 minutes/60 minutes = 1/6
C = 1.25 + (0.25)(1/6)(h)
C = 1.25 + (1/24)(h)
I don't understand why my teacher wrote this:
C = 3.5h + 1.25
Thanks in advance!