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#### Description:

In this activity, students adjust slider bars, which adjust the coefficients and constants of a linear function, and examine how their changes affect the graph. The equation of the line can be in slope-intercept form or standard form. This activity allows students to explore linear equations, slopes, and y-intercepts and their visual representation on a graph. This activity includes supplemental materials, including background information about the topics covered, a description of how to use the application, and exploration questions for use with the java applet.

#### Subjects:

• Mathematics > General

#### Keywords:

oai:nsdl.org:2200/20120614151534253T,Informal Education,Middle School,NSDL,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-016,High School,Vocational/Professional Development Education,High School Programming,Mathematics,Middle School Programming

English

#### Access Privileges:

Public - Available to anyone

Creative Commons Attribution Non-Commercial Share Alike

#### Collections:

None
Update Standards?

#### CCSS.Math.Content.8.EE.B.5: Common Core State Standards for Mathematics

Graph proportional relationships, interpreting the unit rate as the slope of the graph. Compare two different proportional relationships represented in different ways.

#### CCSS.Math.Content.8.EE.C.7a: Common Core State Standards for Mathematics

Give examples of linear equations in one variable with one solution, infinitely many solutions, or no solutions. Show which of these possibilities is the case by successively transforming the given equation into simpler forms, until an equivalent equation of the form x = a, a = a, or a = b results (where a and b are different numbers).

#### CCSS.Math.Content.8.EE.C.8a: Common Core State Standards for Mathematics

Understand that solutions to a system of two linear equations in two variables correspond to points of intersection of their graphs, because points of intersection satisfy both equations simultaneously.

#### CCSS.Math.Content.8.F.A.1: Common Core State Standards for Mathematics

Understand that a function is a rule that assigns to each input exactly one output. The graph of a function is the set of ordered pairs consisting of an input and the corresponding output.

#### CCSS.Math.Content.8.F.A.3: Common Core State Standards for Mathematics

Interpret the equation y = mx + b as defining a linear function, whose graph is a straight line; give examples of functions that are not linear.

#### CCSS.Math.Content.8.F.B.4: Common Core State Standards for Mathematics

Construct a function to model a linear relationship between two quantities. Determine the rate of change and initial value of the function from a description of a relationship or from two (x, y) values, including reading these from a table or from a graph. Interpret the rate of change and initial value of a linear function in terms of the situation it models, and in terms of its graph or a table of values.

#### CCSS.Math.Content.HSF-IF.B.4: Common Core State Standards for Mathematics

For a function that models a relationship between two quantities, interpret key features of graphs and tables in terms of the quantities, and sketch graphs showing key features given a verbal description of the relationship.?

#### CCSS.Math.Content.HSF-IF.B.6: Common Core State Standards for Mathematics

Calculate and interpret the average rate of change of a function (presented symbolically or as a table) over a specified interval. Estimate the rate of change from a graph.?

#### CCSS.Math.Content.HSF-IF.C.7a: Common Core State Standards for Mathematics

Graph linear and quadratic functions and show intercepts, maxima, and minima.

#### CCSS.Math.Content.HSF-LE.A.1a: Common Core State Standards for Mathematics

Prove that linear functions grow by equal differences over equal intervals, and that exponential functions grow by equal factors over equal intervals.

#### CCSS.Math.Content.HSF-LE.A.2: Common Core State Standards for Mathematics

Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs (include reading these from a table).

#### CCSS.Math.Content.HSF-LE.A.3: Common Core State Standards for Mathematics

Observe using graphs and tables that a quantity increasing exponentially eventually exceeds a quantity increasing linearly, quadratically, or (more generally) as a polynomial function.
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