Code | Grade | Cluster | Standard | Object Count |

8.F.1 |
Grade 8 |
Define, evaluate, and compare functions. |
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 (Function notation is not required in Grade 8.). |
1 |

8.F.2 |
Grade 8 |
Define, evaluate, and compare functions. |
Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions). For example, given a linear function represented by a table of values and a linear function represented by an algebraic expression, determine which function has the greater rate of change. |
3 |

8.F.3 |
Grade 8 |
Define, evaluate, and compare functions. |
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 = s2 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. |
1 |

8.F.4 |
Grade 8 |
Use functions to model relationships between quantities. |
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. |
0 |

8.F.5 |
Grade 8 |
Use functions to model relationships between quantities. |
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. |
0 |