True or False-A relation is a set of ordered pairs
What is TRUE?
Evaluate f(x)=-3x if x=2
What is -6?
The point at which the x- and y- axis intersect on the coordinate plane.
A function of x consists of the following ordered pairs of the form (x,y). Four of the ordered pairs are shown below.
(-2,7), (0,3), (1,-4), (5,-2)
Which could be the fifth order pair if it were to remain a functions?
a) (1,9)
b) (5,7)
c) (3,-2)
d) (0,-8)
Is it a function? {(2, 3), (4, 5), ( -2, 6)}
What is YES because x does not repeat?
The set of first coordinates (x-values) of a relation or a function
What is Domain?
Illustrates how each element of the domain is paired with an element in the range.
Mapping
Identify the domain and range of the relation.
{(-9,2), (5,3) (-9, 3) (4,5)}
D: {-9,4,5}
R: {2,3,5}
The set of second coordinates (y-values) in a relation or a function
What is the range?
A way of renaming an equation by replacing y with f(x).
function notation
Find the range of f(x)=-2x+6 for the domain {-1,3,7}
{-8,0,8}
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
A relation that assigns exactly one value in the range to each value in the domain?
What is a function?
A graph consisting of connect lines or curves.
Continuous Graph
What is Flynn Ryder's real name?
Eugene Fitzgerald
The test to tell if a graph is a function
What is the Vertical Line Test?
A graph consisting of distinct points.
Discrete Graph
What are the names of the main couple in Nightmare Before Christmas?
Jack and Sally