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Transcript

In this lesson, you will learn about domain and range.

Module 7 - Lesson 2

Range
Domain
Quadrant
y-axis
x-axis
Coordinate Plane
OrderedPair
Origin

Lesson Vocabulary Review

Continuous - connected
Discrete - not connected
Domain is the set of all x-valuesRange is the set of all y-valuesThere are two types of graphs that we will find the domain and range for DISCRETE and CONTINUOUS

Domain and Range

Check Your Answer

Hover over the graph and write down the domain, all of the x-values, and then the range, all of the y-values.

Discrete Graph

Check Your Answer

What do you think the domain and range would be for a graph that continues on forever?

Continuous Graph

Check Your Answer

How about a graph that continues on forever left and right, but not up and down?Think about possible answers and then check below.

Continuous Graph

Video Examples

You Try!

You Try!

You Try!

You may see these written in a few different ways.Domain: All real numbers, (-∞, ∞), or ℝRange: All real numbers, (-∞, ∞), or ℝ"All real numbers" will be used in this course.
When we need to set limits, we use inequalities.Domain: All real numbersRange: y ≥ -2All y-values greater than or equal to -2 will satisfy this function.
The set of second numbers (y-values) of the ordered pairs in a relation.{(-1, 4), (0, 6), (5, -2)}R= {4, 6, -2}
x y
A set of numbers, or coordinates, written in the form (x, y).(-1, 5)
The four regions into which the x- and y-axis separate the coordinate plane.
(0, 0)
The point at which the x- and y-axis intersect on the coordinate plane; (0, 0).

y-axis

The vertical axis on a coordinate plane.
{(-1, 4), (0, 6), (5, -2)}D = {-1, 0, 5}
The set of first numbers (x-values) of the ordered pairs in a relation.

x-axis

The horizontal axis on a coordinate plane.
Domain: {1, 2, 3, 4, 5}Range: {50, 60, 65, 90, 96}
Formed by the intersection of two number lines, the horizontal axis and the vertical axis.