what do the
[tex] \frac{1}{12} [/tex]
mean???

Do as the apples goes up in 4s
3 7 11 the goes 3 +4 = 7, 7+4 = 11
and Sees goes up in 40's
30 70 110
and rate of change is
[tex]\frac{change in y}{change in x}[/tex]
its 40/4 or 10/1 (that's the first one)