1994 = 4 years after 1990, 2200 moose (4,2200)
1996 = 6 years after 1990, 1700 moose (6, 1700)
P = (slope) t + (intercept)
slope = rise/run = (y2-y1)/(x2-x1) = (2200-1700)/(4-6) = 500/-2 = -250
Find the intercept
P = (slope) t + (intercept)
P = -250t + intercept
plug in (4,2200) and solve for the intercept
2200 = -250*4 + intercept
2200 = -1000 + intercept
3200 = intercept
P = -250t + 3200
The year 2007 is 17 years after 1990. So t=17
P = -250*17+3200 = -1050 this is what the model says
(BUT you cannot have a negative population! So moose would just be extinct, as in 0).