Mathematics for IGCSE & O level - Coordinate Geometry (Section 3 - No. 47)
Which of the following are required to fully define a straight line in a 2D plane?
Two points on the line
The x-intercept and y-intercept
The gradient and a point on the line
The equation of another line
Paliwanag
Multiple methods are valid. Two points define a line. Gradient and a point define a line.