19. an environmental scientist was lecturing her brother about how much paper he wastes. he prints 100 worksheed
day. this gives the equation:
w(n) = 100n,
n21
f) what is the common difference?
g) what does w (n) and n mean in this story?
h) find w (180). what does this answer mean in the context of the story?

the correct answer would be the third option

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.