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Evaluating functions: Linear and quadratic or…

duration 3 minutes 18 seconds

Evaluating functions: Linear and quadratic or…

Evaluating functions: Linear and quadratic or cubic

109 plays 0

Speaks to the meaning of f(x), i.e. function notation. Then demnstrates how to get the value of two different functons given the input value.

Finding inputs and outputs of a two-step function…

duration 4 minutes 41 seconds

Finding inputs and outputs of a two-step function…

Finding inputs and outputs of a two-step function that models a real-world situation: Function notation

From Tom Grant

31 plays 0

Describes a situation that can be written as a function of the number of weeks a certain amount it saved and the resulting functional value is the amount still needed to…

Identifying functions from relations

duration 3 minutes 45 seconds

Identifying functions from relations

From Tom Grant

31 plays 0

Discussion of what relations and functions are and then some exapmles of how to indentify if a particular relation is more specifically a function.

Interpreting the parameters of a linear function…

duration 2 minutes 32 seconds

Interpreting the parameters of a linear function…

Interpreting the parameters of a linear function that models a real-world situation

From Tom Grant

7 plays 0

Describes what the values in a linear relationship mean in a real situation.

Table for a linear function

duration 3 minutes 31 seconds

Table for a linear function

From Tom Grant

14 plays 0

Describes how to find output values for a function given a list of iinput values and a table to complete a set of ordered pair values. Also mentions what function…

Variable expressions as inputs of functions:…

duration 1 minute 4 seconds

Variable expressions as inputs of functions:…

Variable expressions as inputs of functions: Problem type 1

From Tom Grant

33 plays 0

Shows how to input an expression in place of the orignial variable input, and then simplify.

Vertical Line Test

duration 4 minutes 21 seconds

Vertical Line Test

From Tom Grant

243 plays 0

This demonstrates why and how to use vertical lines to test whether a graph of any relation is a function or not.

Math Emporium / Functions and Relations

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