a videoke machine can be rented for php 1000 for three days,but for fourth day onwards,an additional cost php 40 perdays added.represent the function of the number of days it is rented?
Answers
Answer:
f(x) = a. 1000 if 1≥x≥3
f(x) = b. 1000 + 4000(x-3) if x≥4 or 4000x - 12000 + 1000 = 4000x - 11000
Given : a videoke machine can be rented for php 1000 for three days,but for fourth day onwards,an additional cost php 40 perdays added
To find : .represent the function of the number of days it is rented?
Solution:
a videoke machine can be rented for php 1000 for three days
if d ≤ 3 then cost = 1000
if d > 3 then cost = 1000 + (d - 3)40
= 1000 + 40d - 120
= 880 + 40d
= 40(22 + d)
= 40(d + 22)
piecewise function is :
f(d) = 1000 if d ≤ 3
40(d + 22) if d > 3
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