M-ALG-060Higher onlyReview: PendingFind equations of perpendicular lines
Algebra · Coordinate geometry (T-ALG-025)
v1 mapping, pending teacher review. Only AQA and Edexcel are mapped so far. The first 3 pilot worksheets and their worked answers are available; remaining worksheets are coming soon. All videos are still coming soon.
- Retrieval
- Negative reciprocal gradients
- Fluency
- Lines through a specified point
- Reasoning
- Justify a perpendicular or tangent relationship.
- Application
- Show that two lines meet at a right angle
- Common misconception
- Perpendicular gradients are negative reciprocals when finite.
Video brief
Model how to find equations of perpendicular lines. Explain each step; pause for a matching shadow question.
Planned video: V-ALG-060 · Video coming soon
Worksheets
Worksheets coming soon
Note: Scope and tier apply to this skill; tag each generated variant separately.