Functions Is About representing relationships with tables graphs

Functions Is About… representing relationships with tables, graphs, rules, and words. Key Vocabulary Relation: Function: Domain: Range: Ex. 1) Find the domain and range of the relation. Determine if the relation is a function. Ex. 2) Find the domain and range of the relation. Determine if the relation is a function. Finding the Range of a Function

Graphing a Function Rule Matching Graphs and Rules Which equation represents the graph below? So What: What are different ways to represent the relationship between two sets of numbers?

Functions Is About… representing relationships with tables, graphs, rules, and words. Key Vocabulary Function: is a relation in which each number of the domain (input or x value) is paired with exactly one member of the range (output or y value). Do not repeat x values. Domain: is the set of xcoordinates (inputs ). Write the domain in numerical order and do not repeat numbers. (x, y) (Domain, Range) (Input, Output) Range: is the set o ycoordinates (outputs). Write the range in numerical order and do not repeat numbers. (x, y) (Domain, Range) (Input, Output) Finding the Range of a Function Substitute the domain values in for x and solve to get out your y values or the range. Ex. 1) Find the domain and range of the relation. Determine if the relation is a function. Domain: {-7, -3, -2, 4, 5} Range: {3, 5, 7, 8} Is a function, because no xcoordinate repeats. Ex. 2) Find the domain and range of the relation. Determine if the relation is a function. Domain: {2, 3, 4} Range: {5, 7, 8, 9, 10} Is not a function, because the xcoordinates 2 and 4 are repeated. Substitute the domain values in for x and solve to get out your y values or the range.

Graphing a Function Rule Matching Graphs and Rules Which equation represents the graph below? So What: What are different ways to represent the relationship between two sets of numbers? You can represent functions with graphs, tables, rules, and words.