The average number of words remembered over time (in days) can be modeled by the formula:

where w(t) =7t+25/t where t0t

a. On day one, how many words were remembered?

b. On day 25, how many words were remembered?

c. On what day did the number of words remembered first fall below 10?

d. What does the graph indicate happens to the number of words remembered over time? What in the above formula tells you that you will never forget all the words?
e. On what day did the number of words remembered fall below 5?

Question

The average number of words remembered over time (in days)  can be modeled by the formula:

where    w(t) =7t+25/t where t>0t

a.	On day one, how many words were remembered?

b.	On day 25, how many words were remembered?

c.	On what day did the number of words remembered first fall below 10?

d.	What does the graph indicate happens to the number of words remembered over time? What in the above formula tells you that you will never forget all the words? 
e.	On what day did the number of words remembered fall below 5?

anonymous · Answer

Can you repost the formula? I can't see it.

anonymous · Answer

The average number of words remembered over time (in days) can be modeled by the formula: where w(t) =7t+25/t where t>0t a. On day one, how many words were remembered? b. On day 25, how many words were remembered? c. On what day did the number of words remembered first fall below 10? d. What does the graph indicate happens to the number of words remembered over time? What in the above formula tells you that you will never forget all the words? e. On what day did the number of words remembered fall below 5?

anonymous · Answer

I think the best way to handle this is to make a table of values for w vs. t and plot points on a graph.

$\large w(t) =\frac{7t+25}{t} $

Plug in a bunch of different values for t, e.g. 1, 2, 3, 5, 10, 20, 50, 100 and see what the graph looks like.