| A | B |
|---|
| A set of ordered pairs | a relation |
| Set of all the first coordinates | Domain |
| Set of all the second coordinates | Range |
| Y = 5X - which variable is dependent? | Y |
| Y = 5X - which variable is independent? | X |
| What do we call the notation f(x) | Functional notation |
| Relation in which no X has different Ys | Function |
| "Evaluate" means | Stick the number in for the letter and solve |
| Is this a function? (1,2), (3,4) | Yes |
| Is this a function? (1,2), (1,4) | No |
| f(X)=2X+5 Find f(-2) | 1 |
| f(X)=2X+5 Find f(t) | 2t+5 |
| NOT a function if any 2 points are on a | Vertical line |
| Domain is the set of all | X-coordinates |
| Range is the set of all | Y-coordinates |
| f(X)=1/X Find f(0) | Undefined |
| f(X)=X/(X+2) Find f(0) | 0 |
| f(X)=X+2 Find f(X+2) | X+4 |
| f(X)=5/(X+2) Which values excluded from domain? | -2 |
| f(X)=X+2 Which values excluded from domain? | None |
