Objective+1+S3

to catch the Basic Idea of Domain and Range** media type="youtube" key="okCNXr1M4Lw"
 * Domain And Range, Relations Video: Watch this video

Sample Quesitons of Domain and Range, Relations

1.Determine the domain of the Relation: {(0,2),(-2,-4)(-6,-3)} The way the problems are set up are the value on the left is a X Coordinate and the Right is the Y Coordinate, Because we know that the X coordinate is the domain and the Y Coordinate is the Range then the answer is
 * Domain= {0,-2,-6}**

2. Determine the domain and range of the realtion: {(x,y) l 3x<18} First e want to solve the inquality so 3x<18 we would divide the problem by 3 so that the inequality would equal x<6, a easy way to see what you solved is to put it on a number line like the example hear Therefore the answer is **{ X l X < 6 }; Range = { Y l Y is a real number }** when the range or domain is infinite you could say that Range= All reals or vise versa

Hopefully the wiki is to some use to you, Hope you learnt something.