Warm Up Solve for b. (3 - 3 ● 9) + (7 – 2 )b = 24b

Ch. 1-6 Relations

A relation is a set or ordered pairs A relation is a set or ordered pairs. EX: (1,2), (-2,4), (0,-3) A relation can be represented in a graph, with a table, or with mapping.

ӿ Mapping do not write same number twice in a bar 1. Express (2, 3), (2, 0), (-1, 3), as a mapping. Domain Range

*A Graph 1. Express (2, 3), (2, 0), (-1, 3), as a Graph

*A Table 1. Express (2, 3), (2, 0), (-1, 3), as a Table

*Domain and Range 1. Identify domain and range of the relation (2, 3), (2, 0), (-1, 3),

ӿ Practice Express as a table, a graph, and a mapping. Determine the domain and range. 1. (2, 5), (-2, 3), (5, -2), (-1, -2)

*A Table 1. (2, 5), (-2, 3), (5, -2), (-1, -2) As a Table

*A Graph 1. Express (2, 5), (-2, 3), (5, -2), (-1, -2) as a Graph

ӿ Mapping do not write same number twice in a bar 1. Express (2, 5), (-2, 3), (5, -2), (-1, -2) as a mapping. Domain Range

In a relation, the value of the variable that determines the output is the independent variable. The variable that is dependent on the value of the independent variable is called the dependent variable.

For example the amount of your paycheck depends on the number of hours you work

Which is statement is independent and which one is dependent -amount of rain -water level of river

Which is statement is independent and which one is dependent -air pressure in a tire -temperature outside

Identify the independent and dependent variables for each relation ӿ Classwork Identify the independent and dependent variables for each relation Mike’s cell phone is part of a family plan. If he uses more minutes than his share, then there re fewer minutes available for the rest of his family. Julian is buying concert tickets for himself and his friends. The more concert tickets he buys the greater the costs.

ӿ Classwork Cont. Express each relation as a table, a graph, and a mapping. The determine domain and range. 3. {(0,0),(-3,2),(6,4),(-1,1)} 4. {(5,2),(5,6),(3,-2),(0,-2)}