factorising
expanding
ratio
100

3x + 6 

3 (x + 2) 

100

2(4+9w)

18w+8

200

2d + 8

2 (d + 4)

200

what is the dependent variable? 

320 beats per minute

beats. 

300

16 + 8f

4 (4 + 2f)

300
what is the independent variable?


3km/h

hours.
400

3gh + 12

3 (gh + 4)

500

28s + 14st

2s (14 + 7t) 

M
e
n
u