Vocabulary
Finding f(x)
Finding x
domain and range
Is it a Function?
100
True or False-A relation is a set of ordered pairs
What is TRUE?
100
Evaluate f(x)=-3x for f(2)
-6
100
Using f(x)= -3x + 12 find x when f(x)= 3
x=3
100
Find the domain of the function and state whether it is a function {(0,-1), (3, 2), (0, -4), (-3, 2)}
{-3,0,3} , no, the input 0 has two outputs
100
Is it a function? {(2, 3), (4, 5), ( -2, 6), (-3,6)}
YES because x does not repeat
200
The set of first coordinates of a relation or a function, list all 4 names
x value, domain, input, independent variable
200
Evaluate f(x)=2x+1 for f(-2) -2
-5
200
Using f(x)= 4x +1 find x when f(x)= 13
x=3
200
Find the range of the relation and state whether it is a function {(3, 9), (-7, 6), (-6, -7), (7, -2)}
{-7, -2, 6, 9} , Yes, each input has only one output
200
Not a function, the input 5 has two outputs
300
The set of second coordinates in a relation or a function, list all 4 names
y value, output, range, dependent variable
300
Evaluate f(x)=-3 - x for f(6) + f(-2)
-10
300
Using f(x)= -5x +8 find x when f(x) = 10
x=-2/5
300
elements of the domain reflect the ___ values of the ordered pairs
x
300
Is it a function?
Yes, each input has only one output, x does not repeat
400
Define function
A special type of relation that assigns only one output for each input
400
Evaluate f(x)=25 + 4x for f(5)
45
400
Using f(x)= -x + 2x -10 find x when f(x) = 14
x=24
400
The total cost for cars entering President George Bush Turnpike at Beltline Road is related to the number of cars entering the turnpike at Beltline Road. The costs of different numbers of cars entering the turnpike at Beltline Road are as follows: 1 car, $0.75; 2 cars, $1.50; 3 cars, $2.25; 4 cars, $3.00; 5 cars, $3.75.
List elements of the domain and range
Domain {1,2,3,4,5}
Range {0.75, 1.50, 2.25, 3.00, 3.75}
400
Is a relation a function if it is a vertical line on a graph
no, the x value would continually repeat
500
The test to tell if a graph is a function
What is the Vertical Line Test?
500
Evaluate f(x)=-(4x+2) for f(-7)
26
500
Using f(x)=x^2 +32 find x when f(x) = 48
x=4
500
True or False: If a relation is a function the range cannot repeat
false, the range may repeat but the domain cannot
500
Is it a function? 
What is NO because it does not pass the Vertical Line Test?