Lesson 4-6 (13:36)
FUNCTIONS
Function: a relation in which the x values do
not repeat
Table
Set of Ordered Pairs
X
Y
-3
-3
{ (3, 2), (4, 5), (6, 8), (7, 1) }
{ (0, 5), (4, 3), (6, 5), (-7, -4) }
-3
4
-2
1
Mapping
X
Y
-2
6
-3
11
9
11
14
-14
20
{ (2, 21 ), (- 21 , 1), ( 21 , 2), (-0.5, 2) }
Graph
Equation
y = x2 + 1
X
For g(x) = 4x + 2, find the following:
g(5a)
2[g(p - 6)]
g(g(-1))
4x + 2
4x + 2
4x + 2
Y
2
y =x
X
Y
y=5
X
Y
x = –4
X
Y