2. 外语
  3. What is the equation of a line perpendicular to 3x = 2 - y with the y-intercept 8?

What is the equation of a line perpendicular to 3x = 2 - y with the y-intercept 8?

admin2013-02-19  48
问题 What is the equation of a line perpendicular to 3x = 2 - y with the y-intercept 8?
选项
答案y =[*]+ 8
解析 First, rearrange the equation into slope-intercept form, by subtracting 3x and -y from both sides:
y = -3x+ 2
For two lines to be perpendicular, their slopes must be negative reciprocals. The negative reciprocal of -3 is 1/3. The problem also states that the perpendicular line has a y-intercept of 8. If you substitute 1/3 for m and 8 for b in the standard equation, you get y =+ 8.
转载请注明原文地址:https://kaotiyun.com/show/5jkO777K
本试题收录于： GRE QUANTITATIVE题库GRE分类
0

GRE QUANTITATIVE

GRE

相关试题推荐
随机试题
最新回复(0)