1. Using the point of intersections, we use the substitution method to find the coordinates of the line parallel to
substituting the value of y in :
substituting x=-1 in y= -4-5x:
(upon solving, you should get this)
2. Using y=mx+c and making y the subject of the formula 2x-y-9=0 and using the coordinate we found earlier, we will find the equation of the parallel line. (We make y the subject of the formula to find the gradient)
972 represents the population of the rabbits after five years.
5 in f(5) represents the year. 4 in f(x) = 4(3)x represents the starting population of the rabbits 3 in f(x) = 4(3)x represents the rate the population increases x in f(x) = 4(3)x represents the number of years that have passed.