# LINR 1 | Lesson 1 | Standards

#### Core Content Standards

Coherence Map Domain 8.F Functions

8.F.A.3  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. For example, the function $$A = s^2$$ giving the area of a square as a function of its side length is not linear because its graph contains the points $$(1,1)$$, $$(2,4)$$and $$(3,9)$$, which are not on a straight line. Use functions to model relationships between quantities.

8.F.B.4  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.

8.F.B.5. Describe qualitatively the functional relationship between two quantities by analyzing a graph (e.g., where the function is increasing or decreasing, linear or nonlinear). Sketch a graph that exhibits the qualitative features of a function that has been described verbally.

HSF.IF.B.4  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. Key features include: intercepts; intervals where the function is increasing, decreasing, positive, or negative; relative maximums and minimums; symmetries; end behavior; and periodicity.*

#### Related Standards

Analyze functions using different representations.

HSF.IF.C.7 Graph functions expressed symbolically and show key features of the graph, by hand in simple cases and using technology for more complicated cases.*

HSF.IF.C.7.A Graph linear and quadratic functions and show intercepts, maxima, and minima.

#### Standards for Mathematical Practice

SMP1: Make sense of problems and persevere in solving them.

SMP2: Reason abstractly and quantitatively.

SMP5: Use appropriate tools strategically.

SMP6: Attend to precision.

SMP7: Look for and make use of structure.

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