domain
What is the domain?
(8,3)(4,6)(1,3)(9,0)
8,4,1,9
what is a function?
a relation where each input has only one output.
what is the range?
the set of all y values
what is a relation?
a set of ordered pairs
define Domaine
the x values
is {(1,2),(2,3),(1,4)} a function?
No.
find the range: {(2,5),(7,1)(4,9)}
{(5,1,9)}
are all relations functions
No
find the Domain
X Y
1 4
3 6
5 8
7 0
the domain is
1,3,5,7
does a vertical line test determine if a graph is a function?
yes.
what is the range of y = x^2
all numbers greater than or equal to 0.
give an example of a relation that is not a function
{(1,2),(1,5)}
what values are in the domain of
y= x + 2
all real numbers
why is {(3,1),(3,5)} not a function?
one input has two outputs.
what part of a graph shows the range?
the y values
ordered pairs are written in what form?
(x,y)
what is the domain of a graph
all x values on the graph
true or false: Every function is a relation
True
can the range have repeated numbers?
yes
true or false: A graph can be a relation and not a function
True