Keisha needs to ship a package. At a postal center, she discovers that the cost to ship a
package that weighs up to x pounds is m dollars.
For each additional pound, or fraction of the
additional pound, there is an additional charge of
n dollars
Which of the following functions would best model the situation given above?
A.
absolute value
B.
cube root
C.
polynomial
D.
step

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

2x^2+5x+17

your welcome. : )