Everything! Flashcards
1
Q
How do vectors work fr.
A
left/right
up/down
2
Q
equation of circle
A
x^2 + y^2 = r^2
3
Q
equation for frequency density
A
frequency / class width
4
Q
sin hand rule
A
√number of fingers (underneath)/2
5
Q
whats sine 60
A
√3/2
6
Q
whats cos rule
A
√number of fingers (above)/2
7
Q
whats cos 90
A
0
8
Q
whats cos 45
A
√2/2
9
Q
whats tan rule
A
flip finger
√fingers above/√fingers below
10
Q
F(x) + a
A
A units up
11
Q
F(x+a)
A
A units left
12
Q
Af(x)
A
A>1 stretch
A<1 shrink
13
Q
F(ax)
A
1/a>1
1/a<1
14
Q
-f(x)
A
Reflection in x axis
15
Q
F(-x)
A
Reflection in y axis
