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Description:

This lesson is designed to introduce students to the idea of functions composed of two operations, with specific attention to linear functions and their representations as rules and data tables. The lesson also introduces the concepts surrounding independent and dependent variables. This lesson provides links to discussions and activities related to multi-step linear functions as well as suggested ways to integrate them into the lesson. Finally, the lesson provides links to other lessons designed as follow-up to multi-step functions.

Subjects:

• Mathematics > General

Keywords:

Middle School,NSDL,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-016,High School,oai:nsdl.org:2200/20120614151512741T,Vocational/Professional Development Education,Mathematics

English

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Public - Available to anyone

Creative Commons Attribution Non-Commercial Share Alike

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Update Standards?

CCSS.Math.Content.8.EE.B.6: Common Core State Standards for Mathematics

Use similar triangles to explain why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane; derive the equation y = mx for a line through the origin and the equation y = mx + b for a line intercepting the vertical axis at b.

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.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.2: Common Core State Standards for Mathematics

Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions).

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.A.1: Common Core State Standards for Mathematics

Understand that a function from one set (called the domain) to another set (called the range) assigns to each element of the domain exactly one element of the range. If f is a function and x is an element of its domain, then f(x) denotes the output of f corresponding to the input x. The graph of f is the graph of the equation y = f(x).

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.C.7a: Common Core State Standards for Mathematics

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

CCSS.Math.Content.HSF-BF.B.4a: Common Core State Standards for Mathematics

Solve an equation of the form f(x) = c for a simple function f that has an inverse and write an expression for the inverse.

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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