Coordinating the Plane (Leaving Cert Mathematics): Flashcards

Flat surface divided by 2 perpendicular lines to locate points precisely

Horizontal line running left to right

Vertical line running up and down

$(0, 0)$

Cartesian plane

René Descartes (1596-1650)

$(x, y)$ - x first, y second

Along corridor (x), then up stairs (y)

Four (I, II, III, IV)

Both positive

$x$ negative, $y$ positive

Both negative

$x$ positive, $y$ negative

$0$

$0$