functions Flashcards
1
Q
m>0
A
/
function increasing
2
Q
m=0
A
_
3
Q
m<0
A
\
function decreasing
4
Q
m undefined
A
|
5
Q
vertical lines
A
x =
m undefined
6
Q
horizontal line
A
y=
m=0
7
Q
parallel lines
A
equal gradients
m1=m2
8
Q
perpendicular lines
A
gradients are opposite reciprocals
(switch num + den + change sign)
m1 x m2 = -1
9
Q
reflection about y axis
A
(-x)
10
Q
reflection about x axis
A
(-y)
11
Q
vertical distance
A
Ytop-Ybottom
12
Q
horizontal distance
A
Xright- Xleft
13
Q
parabola equation
A
y=ax2 + q
14
Q
a>0
A
up
15
Q
a<0
A
down
