AMC 8 2006 Problem 10
AMC8 2006 年第 10 题
比与比例★★☆☆☆
Jorge's teacher asks him to plot all the ordered pairs (w, l) of positive integers for which w is the width and l is the length of a rectangle with area 12. What should his graph look like?
Jorget 的老师要求他画出所有的(w,l)正整数对,其中 w 和 l 分别是一个面积为 12 的矩形的宽和长。则他画的图应该是下面哪个?
- A.

- B.

- C.

- D.

- E.

正确答案 · Correct Answer
A
解析 · Solution
Solution 1
The length of the rectangle will relate invertly to the width, specifically using the theorem . The only graph that could represent a inverted relationship is. (The rest are linear graphs that don't represent indirect relationships, therefore they are correct.)
继续练习