Coordinates Flashcards

All 6 cards in this deck

What does each number in the coordinate pair $(x, y)$ tell you?

e.g. $(3, -2)$

First number = horizontal position from the origin (across), second = vertical position (up/down).

So $(3,-2)$ is 3 right and 2 down.

What are the coordinates of the origin?

$(0, 0)$

What are the signs of the coordinates of a point in the bottom-left quadrant?

Both negative.

e.g. $(-3, -2)$

What is true of the coordinates of every point on the $y$-axis?

The $x$-coordinate is $0$.

e.g. $(0, -4)$

True or false? $(4, -1)$ and $(-1, 4)$ are the same point.

False. Order matters: $(4,-1)$ is 4 right and 1 down, $(-1,4)$ is 1 left and 4 up.

True or false? A point with a negative $y$-coordinate lies below the $x$-axis.

True. Negative $y$ means downwards from the origin.