Different ways to represent relations
Ordered pairs, table, graph, mapping diagrams
Domain
X values
Independent
Range
Y values
Independent
Discrete data
Specific points
Continuous data
All real numbers
Greater than
When is a relation a function
When each x has exactly one y
A relation is a function if and only if
No vertical line intersects the graph of the relation At more than one point
Absolute value always makes
V shaped graph
When writing domain and range always include the words
All real numbers
H(x)=
Function notation
Solve h(x)= 2x+5 when x=2
H(2)=2(2)+5
=9
X^0=
1
Linear equations means x can be to what power
X^0
X^1