新SAT数学OG样题-Multiple choice题型例题（1）
- 2017年06月08日15:32 来源：小站教育作者：小站SAT编辑
- 参与（1） 阅读（7792）
Line £ is graphed in the xv-plane below.
新SAT数学OG样题-Multiple choice题型解析汇总，点击查看
If line l is translated up 5 units and right 7 units, then what is the slope of
the new line?
Content: Heart of Algebra
Key: B
Objective: You must make a connection between the graphical form of a
relationship and a numerical description of a key feature.
Explanation: Choice B is correct. The slope of a line can be determined by
finding the difference in the y-coordinates divided by the difference in the
x-coordinates for any two points on the line. Using the points indicated,
the slope of line l is - . Translating line l moves all the points on the line
the same distance in the same direction, and the image will be a line parallel
to £. Therefore, the slope of the image is also - .
