Media services charges $40 for a phone and 20/mth for its economy plan. It says to find a model that determines the total cost, C(t), of operationg a media Services phone for t months. I think the answer should be in this equation - y = mx+b. Not sure.
So far so good.
What values would you assign to m and b to complete the operation model?
y = 40x+20?
Correct!
Watch out, it's $20/month and the phone (one time only) is $40.
so the equation should be:....
not sure but will take a stab at it. y = 20x +40?
Nope that was wrong on my part. I believe the final answer is C(t) = 20t+40
I also need to find the total cost. This is what I have.
C = 20(0) +40. (0,40).
C (5) = 20 (5) + 40.
C (5) = 100 +40 = 140 (5, 140)
So the total cost is 130. IS THIS RIGHT?