a store offers packing and mailing services to customers. the cost of shipping a box is a combination of a…

a store offers packing and mailing services to customers. the cost of shipping a box is a combination of a flat packing fee of $5 and an amount based on the weight in pounds of the box, $2.25 per pound. which equation represents the shipping cost as a function of x, the weight in pounds? f(x)=2.25x + 5 f(x)=5x + 2.25 f(x)=2.25x - 5 f(x)=5x - 2.25

a store offers packing and mailing services to customers. the cost of shipping a box is a combination of a flat packing fee of $5 and an amount based on the weight in pounds of the box, $2.25 per pound. which equation represents the shipping cost as a function of x, the weight in pounds? f(x)=2.25x + 5 f(x)=5x + 2.25 f(x)=2.25x - 5 f(x)=5x - 2.25

Answer

Explanation:

Step1: Identify cost - components

The flat packing fee is a constant $5. The cost based on weight is $2.25 per pound. If the weight of the box is $x$ pounds, the cost due to weight is $2.25x$.

Step2: Form the function

The total shipping cost function $f(x)$ is the sum of the flat - fee and the weight - based cost. So $f(x)=2.25x + 5$.

Answer:

A. $f(x)=2.25x + 5$