Domain & Range
Evaluating Function Rules
Writing Functions
Graphing Functions
Is it a Function?
100
What is the domain?
(1,2),(2,3)
1,2
100
Evaluate f(x)=-3x if x=2
What is -6?
100
Given the points write a function rule (0,-2);(1,-1); (2,0)
What is y=x-2?
100
y=2x+1 at x=-3,0,2
(-3,-5),(0,1),(2,5)
100
Is it a function?
{(2, 3), (4, 5), ( -2, 6)}
What is YES because x does not repeat?
200
The set of first coordinates, x values, or inputs of a relation or a function
What is Domain?
200
Evaluate f(x)=2x+1 if x=-2
What is -3?
200
Given the points write a function rule (0,0); (1,3); (2,6)
What is y=3x?
200
y=x+4 at x=-2,4,5
(-2,2),(4,8),(4,9)
200
Does the graph of the points (1,3) and (1,5) represent a function?
No
300
The set of second coordinates, y values, or outputs in a relation or a function
What is the range?
300
Evaluate f(x)=-3 - x if x=6
What is -9?
300
Given the points write a function rule (0,0); (2,1); (4,2)
What is y=x/2?
300
y=2x-4 at x=-3,-1,4
(-3,-10),(-1,-6),(4,4)
300
Is it a function?
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
No
400
What is the range?
(3,-5),(2,-1),(2,8),(4,8)
-5,-1,8
400
Evaluate f(x)=25 + 4x if x=5
What is 45?
400
Given the points write a function rule (-1,-1); (0,1); (1,3);(2,5)
What is f(x)=2x+1?
400
y=-2x+1 at x=-4,0,3
(-4,9),(0,1),(3,-5)
400
Is it a function?
Yes
500
What is the domain?
(-3,2),(5,6),(-2,-4),(-3,2),(4,2)
-3,-2,4,5
500
Evaluate f(x)=-(4x+2) if x=7
What is -30
500
Given the points write a function rule (0,5); (1,6); (2,7);(-1,4)
What is f(x)=x+5
500
y=x2-7 at x= -4,-1,0,2,3
(-4,9),(-1,-6),(0,-7),(2,-3),(3,2)
500
Is it a function? 
No