IB Maths AI SL 2.1 Straight lines
IB Maths AI SL 2.1 Straight lines
Students practise calculating gradients and intercepts of straight lines from coordinates or context, writing equations in gradient–intercept or point–gradient form, and…
How this is tested
- calculate gradient as (y₂ − y₁)/(x₂ − x₁) for points on a ray of light or edge between sites
- write a line equation using point-gradient form or a perpendicular bisector
- read the y-intercept directly from the constant term or from the graph