AnswersPARTA - EOP PGCPS GEOMETRY OC FALL2026 - 793413Slopes of Parallel and Perpendicular Lines — Unit testQuestion 17
17
QuizMultiple Choice

Slopes of Parallel and Perpendicular Lines — Unit test

Question 17 • PARTA - EOP: PGCPS GEOMETRY OC (FALL2026) - 793413

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?

Answer
A
f(x) = 2.25x + 5
B
f(x) = 5x + 2.25
C
f(x) = 2.25x − 5
D
f(x) = 5x − 2.25

Explanation

The shipping cost includes a $5 flat packing fee plus $2.25 for each pound. For a box weighing x pounds, the weight-based charge is 2.25x, so the total cost is f(x) = 2.25x + 5. This matches choice A.

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