Function Vocab
Evaluating Function Rules
Is it a Function?
Finding Zeros
Arithmetic Sequences
100
True or False-A relation is a set of ordered pairs
What is TRUE?
100
Is it a function?
{(2, 3), (4, 5), ( -2, 6)}
What is YES because x does not repeat?
100
Evaluate f(x)=-3x if x=2
What is -6?
100
Where are the zeros of the function, if any exist?
x={-3,-1,2}
100
Determine whether the sequence is arithmetic:
-3, -5, -7, -9
If so, find the common difference.
yes; d = -2
200
The set of first coordinates of a relation or a function
What is domain/x-values?
200
Does the graph of the points (1,3) and (1,5) represent a function?
What is False, the points have repeat x-values
200
Evaluate f(x)=2x+1 if x=-2
What is -3?
200
What is/are the solution(s) to the function?
f(x) = x - 1
x = 1
200
Find the next 3 terms in the arithmetic sequence:
2, 6, 10, __, __, __
14, 18, 22
300
The set of second coordinates in a relation or a function
What is the range/y-values?
300
Is it a function?
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
What is NO because the x-value of 2 repeats?
300
Evaluate f(x)=-3 - x if x=6
What is -9?
300
What is/are the solution(s) to the function?
g(x) = 2x - 6
x = 3
300
Determine if the sequence is arithmetic:
17, 19, 23, ...
If so, find the common difference.
no; there is no common difference (first +2, then +5)
400
A relation that assigns exactly one value in the range to each value in the domain?
What is a function?
400
Is it a function?
What is YES because it passes the Vertical Line Test?
400
Evaluate f(x)=25 + 4x if x=5
What is 45?
400
Where are the roots of the function, if any exist?
x={2}
400
Write an equation to find the nth term of the sequence:
5, 6, 7, 8, ...
an = n + 4
500
The test to tell if a graph is a function
What is the Vertical Line Test?
500
Is it a function?
What is NO because it does not pass the Vertical Line Test?
500
Evaluate f(x)=-(4x+2) if x=7
What is -30
500
Where are the x-intercepts of the function, if any exist?
no solution
500
Use the given explicit formula to find the value of a9.
an = n + 4
a9 = 9 + 4
so
a9 = 13