Relations And Functions Dictionary

Question 1

Coordinate Plane

Answer 1

Formed by the intersection of two number lines, the horizontal axis and the vertical axis

Question 2

X-axis

Answer 2

The horizontal axis on a coordinate plane

Question 3

Y-axis

Answer 3

The vertical axis on a coordinate plane

Question 4

Quadrants

Answer 4

The four regions into which the x and y-axis separate the coordinate plane

Question 5

Origin

Answer 5

The point at which the x and y-axis intersect on the coordinate plane; (0,0)

Question 6

Ordered pair

Answer 6

A set of numbers, or coordinates, written in the form (x,y)

Question 7

X-coordinate

Answer 7

The x-value of an ordered pair, represents the horizontal placement of the point

Question 8

Y-coordinate

Answer 8

The y value of an ordered pair, represents the vertical placement of the point

Question 9

Discrete Graph

Answer 9

A graph that consists of points that are not connected

Question 10

Continuous Graph

Answer 10

A function graphed with a line or smooth curve

Question 11

Relation

Answer 11

A set of ordered pairs

Question 12

Domain

Answer 12

The set of first numbers (x-values) of the ordered pairs in a relation

Question 13

Range

Answer 13

The set of second numbers (y-values) of the ordered pairs in a relation

Question 14

Mapping

Answer 14

Illustrates how each element of the domain is paired with an element of the range

Question 15

Function

Answer 15

A relation in which each element of the domain is paired with exactly one element of the range