로그인
Mathematics for IGCSE & O level - Coordinate Geometry (Section 2 - No. 30)
If two lines are perpendicular, and the gradient of one line is -1/2, what is the gradient of the other line?
-2
2
1/2
-1/2
설명
The gradient is the negative reciprocal, so 2.
댓글 (0)
댓글을 달려면 로그인하세요
광고
자바스크립트가 이 페이지를 올바르게 로드하도록 허용