Each year, a certain tree doubled in height. At the end of 6 years, the height of the tree was 32 feet. What was the height of the tree at the end of 3 years?

b, i believe, but not sure.

is there supposed to be a diagram or a graph for this one? ?

step-by-step explanation:

d will be the best answer

d

step-by-step explanation:

the two points from this line are   (0,4)   & (2,-2)

we can call

now, lets find the slope (m):

now finding b (the y intercept). this is the point at the y-axis where the line cuts the axis. looking at the graph, it is y = 4. so the point is 4. hence b = 4

the slope-intercept form is given by  

putting the points, we have:

d is the correct answer.