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Vocabulary
Domain & Range
Is it a function?
Evaluate Functions
Evaluate Multiple Functions
100
Domain
What is the input, the x value, the independent variable
100
Find the domain and range. {(-3,2),(-2,4),(-1,2),(5,4)}
D:{-3,-2,-1,5} R:{2,4}
100
Is the following relation a function? {(-3,2),(-2,4),(-1,2),(5,4)}
What is yes?
100
f(x) = 3x - 4 f(3)
What is 5.
100
If f(x)=x+4 and g(x)=3x evaluate f(5)+g(2).
What is 15?
200
Range
What is the output, the dependent variable, the y variable
200
Find the domain and range. {(-1,5),(2,3),(4,2),(10,2)}
D:{-1,2,4,10} R:{2,3,5}
200
Is the following relation a function? {(-1,5),(2,5),(4,5),(10,5)}
What is yes?
200
f(x) = 3x-5 and g(x) = x2 f(g(3)) =
What is 22
200
If f(x)=2x+4 and g(x)=x-4 evaluate f(4)–g(-1).
What is 17?
300
Define vertical line test.
What is used to determine if the graph of a relation is a function. Each x should be assigned only one y value. no 2 points should be over each other.
300
Find the domain of f(x) = 1/x
What is all real number except 0 ( x≠0 )
300
Is the following relation a function? {(-1,5),(2,3),(4,2),(-1,2)}
What is no?
300
f(x) = 2x2 and g(x) = 1/x f(f(g(x))=
What is 8/(x4)
300
If f(x)=5x-3 and g(x)=x2 Evaluate f(3)•g(4).
What is 192?
400
Define function.
What is a set of ordered pairs where each x-value is assigned only one y value
400
Find the domain and the range of f(x) = 1/((x-2)(2x+3)
Domain is x≠2 and x≠ -3/2 Range is all real numbers except 0
400
If the graph of a relation was a circle, would the relation be a function?
No
400
f(x) = 3x 2 +5. Find x if f(x) = 11
What is the square root of 2.
400
If f(x)=x+2 and g(x)=9/x evaluate f(g(3)).
What is 5?
500
Define independent variable.
What is input, domain, x-value?
500
Find the domain and range. f(x) = \/x-4 (square root of (x-4))
D: x is greater than or equal to 4 R: y is greater than or equal to 0
500
Is a horizontal line a function?
yes
500
f(x) = 3x3 and g(x) = 3x-6. Solve for x f(g(7/3))=g(f(x))?
x = 1
500
If f(x)=x2 +1 and g(x)=x-4 evaluate g(f(-2)).
What is 1?