Flip and pair: condition with conclusion
Read exercise and reference answers
- Matching pairs
- A
- Equal slopes
- B
- parallel
- A
- Slopes multiply to −1
- B
- perpendicular
- A
- Slope AB = slope BC
- B
- collinear
- A
- Slope zero
- B
- horizontal line
- A
- Slope undefined
- B
- vertical line
The chapter's four tests. Source: syllabus Maths, Ch 9 Straight Lines.