Use the graph of a the function to determine the initial value and the rate of change.
dot at: (0,2)
dot at: (1,5)
dot at: (-1,-1)
dot at: (-2,-4)
b=[ ]
m=[ ]
Initial value (b) = 2
Rate of change (m) = 3 (from 2 to 5), or -3 (from 5 to 2), or 1 (from -1 to 2), or -3 (from -4 to -1)