Straight lines can be drawn in any direction. Horizontal lines go left and right. Vertical lines go up and down. Parallel lines are a fixed distance apart and will never meet, no matter how long they ...

The questions in this quiz are suitable for GCSE maths students studying coordinates, straight line graphs, y = mx + c, parallel and perpendicular lines and the equation of a line through two points.

Horizontal lines run left to right, parallel to the horizon, with slope 0 and equation y = k. Vertical lines run top to bottom, perpendicular to the horizon, with undefined slope and equation x = k.

Hyundai wants to turn parallel parking into perpendicular parking and perpendicular parking into pivot parking. The automaker's Hyundai Mobis division is developing a new type of four-wheel-steering ...