Function Vocab
Evaluating Function Rules
Writing Function Rules
Graphing
Is it a Function?
100
What is the slope-intercept form?
y = mx + b
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
Graph the point (1,2)
Ask Ms. Simbulan or Mr. McCain
100
Is it a function?
{(2, 3), (4, 5), ( -2, 6)}
What is YES because x does not repeat?
200
The set of inputs
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
Graph the point (-3,4)
3 to the left on x axis
4 up on y axis
200
Does this pass the vertical line test?
True
300
The set of outputs
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
Graph (-3, -5)
3 to the left on x axis
5 down on the y axis
300
Is it a function?
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
What is NO because x repeats?
400
A relation that assigns exactly one value in the range to each value in the domain?
What is a function?
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
Plot these points (-2,3), (3,-4) (2,3)
2 to the left, 3 up
3 to the right, 4 down
2 to the right, 3 up
400
Is it a function?
What is YES because it passes the Vertical Line Test?
500
The test to tell if a graph is a function
What is the Vertical Line Test?
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
Graph y= -(3/5)x + 7
m = -3/5
b = 7
500
Is it a function? 
What is NO because it does not pass the Vertical Line Test?