Functions and Relations Flashcardziz Review

An ordered pair is a pair of numbers used to locate a point on a coordinate plane, written in the form (x, y).

A relation is a function if every input (x-value) has exactly one output (y-value).

The coordinate plane is a two-dimensional surface formed by the intersection of a horizontal line (x-axis) and a vertical line (y-axis).

Quadrant I: (+, +), Quadrant II: (-, +), Quadrant III: (-, -), Quadrant IV: (+, -).

Determine the signs of x and y: (+, +) is Quadrant I, (-, +) is Quadrant II, (-, -) is Quadrant III, and (+, -) is Quadrant IV.

The y-axis is the vertical line on the coordinate plane where x = 0.

The x-axis is the horizontal line on the coordinate plane where y = 0.

A table represents a function if each input value corresponds to one and only one output value.

The point (0, 0) is called the origin, where the x-axis and y-axis intersect.

Start at the origin, move 5 units to the right (x-axis), and then 2 units up (y-axis).