Warm-up
Solve for x:
1) 2(x-3)=8
2) 4(x+2)=16-2x
1
2c
3c
4
2
Direct Variation
y=____
k is the constant of proportionality for the relationship,
k=_____
Example: For each increase of 1 unit in the radius, the
circumference increase by 2π units.
C=____
The variable ________________ is directly proportional
to ____________ with constant of proportionality _____.
3
Inverse Variation
y=____
k is the constant of proportionality for the relationship
k=____
Example: s = 500 and ___=____, where k=_____
t
The variable _____________ is inversely proportional to
the _____________ with constant of proportionality
____.
4
8
5
10
6
7