Write a rule in function notation for each situation.
1. Airport parking is available for $8 per day
A: f (x) = 8x?
2. A glass of iced tea costs $2.00. Refills cost $0.25 each.
A: ?
f(x) = 2.00 + .25(x-1)
p(d) = 8d
f(t) = 0.2t + 2
p(d) = 8d
f(t) = 0..25(t-1) + 2
2. Is it not f(r) = 2 + 0.25r?
No, because you only pay .25 AFTER you buy the first one for 2
2+ .25(t-1) it does not make sense to me.
Because it is per day
f(d) = 8d
rate
F(r) = 2 + .25r
you pay $2 for the first day
You do not pay 0.25 on day one
so your 0.25 per day has to delete day one
the number of days you pay 0.25 is
t-1
so for one day, $ 2 + ZERO
two days $2 + 1 (.025)
three days $2 + 2 (.025)
etc