Functions

8.FN.1Graph proportional relationships, interpreting the unit rate as the slope of the graph.8.FN.2Explain, using similar right triangles, how the slope of a line is the same between two points on a non-vertical line or non-horizontal line. Slope includes: positive, negative, horizontal (zero), and vertical (undefined)8.FN.3Determine whether a relation is a function or not when given a function map, table, graph, equation, or set of ordered pairs.8.FN.4Compare the rate of change (slope) and y-intercept (initial value) of two linear functions each represented in different forms. Functions are represented algebraically, graphically, numerically in tables, or by verbal descriptions.8.FN.5Distinguish between linear and nonlinear functions by comparing graphs and equations.8.FN.6Determine the rate of change (slope) and y-intercept (initial value) from tables, graphs, equations, and verbal descriptions of linear relationships.8.FN.7Interpret and explain the meaning of the rate of change (slope) and y-intercept (initial value) of a linear relationship in a real-world context.8.FN.8Analyze a graph by describing the functional relationships between two quantities.8.FN.9Sketch a graph that exhibits qualitative features of a function described verbally.
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