The slope of the line is It can be found from any two points that fall on a line by using the formula 2 is x or y from the second point and 1 is x or y from the first point
For example in that problem the first point is -2,0 and the second one is 0,3
The geometric sequence is given by: an=ar^(n-1) where: a=first term r=common ratio n is the nth term given that a=4, and second term is -12, then r=-12/4=-3 hence the formula for this case will be: an=4(-3)^(n-1) where n≥1