FUNCTIONS Flashcards
1
Q
y = -f(x)
A
Reflection in x axis
2
Q
y = f(-x)
A
Reflection in y axis
3
Q
y = f(x-a)
A
Translation of a units to the right
4
Q
y = f(x+a)
A
Translation of a units to the left
5
Q
y = f(x) + a
A
Translation of a units up
6
Q
y = f(x) - a
A
Translation of a units down
7
Q
y = kf(x)
A
Stretch in the y direction with scale factor k - taller or shorter
8
Q
y = f(kx)
A
Stretch in the x direction with scale factor 1/k - narrower/wider
9
Q
natural domain of x^2
A
x is a real number
10
Q
natural domain of root x
A
x > or = to 0
11
Q
natural domain of 1/x
A
x not = to 0
12
Q
natural domain of 1/rootx
A
x > 0
13
Q
even function
A
f(-x) = f(x)
14
Q
odd function
A
f(-x) = -f(x)
15
Q
finding x intercept
A
set f(x) = 0
