Functions Flashcards
1
Q
How to write domain
A
{x+lRl
2
Q
Even function
A
F(x)=f(-x)
Symmetric with respect to y
X^2
3
Q
Odd function
A
-f(x)=f(-x)
Symmetric with respect to x
X^3
4
Q
Translate up
A
F(x)+c
5
Q
Down
A
F(x)-c
6
Q
Left
A
F(x+c)
7
Q
Right
A
F(x-c)
8
Q
Vert. Stretch
A
Y=a(x^2)
a>1
9
Q
Vert. Shrink
A
Y=a(x^2)
a<1
10
Q
Horizontal stretch
A
Y=(ax^2)
a<1
11
Q
Horizontal shrink
A
Y=(ax^2)
a>1
12
Q
Rules
A
Radical set >= 0
Set dem. Not = 0
13
Q
Focus
A
Fix point on interior of the parabola
14
Q
Directrix
A
Line perpendicular to axis of symmetry
15
Q
Parabola
A
Set of points of equal distance from focus in directrix
