Line a: 4y + x = 8
Line b: 2y + r = 4
Line c: 22 - 3x + 6

the radius is 2 times the diameter.

step-by-step explanation:

this "question" looks more like a project is there any other info you can give me about this. it could be too complex for someone else to do on this website

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.