Learning Resource Type

Classroom Resource

More Graphs of Functions

Subject Area

Mathematics

Grade(s)

8

Overview

In this video lesson, students begin to analyze graphs of functions and use them to answer questions about a context. Students look at what happens over intervals of input values and learn that graphs can be viewed as dynamic objects that tell stories. They connect specific features of the graph with specific features of the contextual situation and investigate what happens over ranges of input values.  As students learn to interpret graphs in terms of a context and use them to answer questions, they learn an important skill in mathematical modeling (MP4).

Grade 8, Episode 9: Unit 5, Lesson 5 | Illustrative Math

    Mathematics (2019) Grade(s): 8

    MA19.8.13

    Determine whether a relation is a function, defining a function as a rule that assigns to each input (independent value) exactly one output (dependent value), and given a graph, table, mapping, or set of ordered pairs.

    Unpacked Content

    UP:MA19.8.13

    Vocabulary

    • Relation
    • Function
    • Input
    • Output

    Knowledge

    Students know:
    • how to interpret a graph, table, mapping, and ordered pairs.

    Skills

    Students are able to:
    • give an accurate definition of a function.
    • Analyze graphs, tables, mappings, and sets of ordered pairs to determine if a relation is a function.

    Understanding

    Students understand that:
    • Functions assign every input one output, but they may see outputs repeat.
    Link to Resource

    CR Resource Type

    Audio/Video

    Resource Provider

    PBS
    Accessibility
    License

    License Type

    CUSTOM
    ALSDE LOGO