Function Vocab
Evaluating function rules
Writing Function rules
Graphing
Is it a Function?
100
True or False-A relation is a set of ordered pairs
True
100
evaluate If f(x)=-3x if x=2
-6
100
Given the points what is the equation
(0,-2);(1,-1); (2,0)
y=x-2
100
The point (1,2) is in this quadrant
the 1st quadrant
100
Is it a function? {(2, 3), (4, 5), ( -2, 6)}
YES because x does not repeat
200
The set of first coordinates of a relation or a function
Domain
200
evaluate f(x)=2x+1 if x=-2
-3
200
Given the points what is the function rule
(0,0); (1,3); (2,6)
y=3x
200
How do you graph the point (-3,4)?
you go left 3 units on the x-axis then go up 4 units on the y-axis
200
Using the vertical line test does the graph of the points (1,3) and (1,5) represent a function?
False, the points fail the vertical line test
300
The set of second coordinates in a relation or a function
Range
300
evaluate f(x)=-3-x if x=6
-9
300
Given the points write a function rule (0,0); (2,1); (4,2)
y=x/2
300
The signs of the points in quadrant 2
What is the (- , +)
300
Is it a function? (2,4);(1,5); (2,6)
NO because x repeats?
400
A relation that assigns exactly one value in the range to each value in the domain
A Function
400
evaluate f(x)25=+4x if x=5
45
400
Given the points write a function rule (-1,-1); (0,1); (1,3);(2,5)
f(x)=2x+1
400
The quadrant that doesn't contain one of these points (-2,3), (3,-4) (2,3)
What is the third quadrant
400
Is it a function?
YES because it passes the Vertical Line Test?
500
The test to tell if a graph is a function
The vertical line test
500
evaluate f(x)=-(4x+2) if x=7
-30
500
Given the points write a function rule (0,5); (1,6); (2,7);(-1,4)
f(x)=x+5
500
What quadrant is the point (0,2) in?
none because the point sits on the y-axis
500
Is it a function?
NO because it does not pass the Vertical Line Test?