Mathematics for IGCSE & O level - Coordinate Geometry (Section 4 - No. 39)
What is the equation of the line that is parallel to y = 2x - 1 and passes through the point (0, 0)?
y = -1/2 x
y = 2x
y = x - 1
y = 1/2 x
คำอธิบาย
Parallel lines have the same gradient (2) and passes through the origin (0, 0).