SOLUTION: Can someone help me with this? Write an exponential function that passes through these points: (0,128) and (5,371,291). The three points in the 2nd set kinda threw me off.

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Can someone help me with this? Write an exponential function that passes through these points: (0,128) and (5,371,291). The three points in the 2nd set kinda threw me off.      Log On


   

Question 1108744: Can someone help me with this?
Write an exponential function that passes through these points: (0,128) and (5,371,291). The three points in the 2nd set kinda threw me off.
Found 2 solutions by ikleyn, greenestamps:
Answer by ikleyn(52834) About Me  (Show Source):
You can put this solution on YOUR website!
.
The three numbers in the second set are

a)  nonsense;
b)  mistake;
c)  error;
d)  typo

and so on.

It is not the issue where we can help you.


Answer by greenestamps(13203) About Me  (Show Source):
You can put this solution on YOUR website!


Since ordered pairs consist of (obviously!) two numbers, the only possible interpretation of the second given point is (5,371291). Putting a comma in the second number in the ordered pair is extremely bad form....

So we have an exponential function of the form f%28x%29+=+ab%5Ex with
f%280%29+=+ab%5E0+=+a+=+128
f%285%29+=+ab%5E5+=+128b%5E5+=+371291
b%5E5+=+371291
b+=+%28371291%29%5E%281%2F5%29+=+4.926 approximately

So the function is
f%28x%29+=+128%2A%284.926%29%5Ex