The local newspaper tells you that ad space costs 40 per column-inch. A "column-inchis space one column wide nch high. You want
1 answer:
You might be interested in
Assuming the function is
For
to be differentiable, it necessarily has to be continuous. For this condition to be met, we need
For the derivative to exist, the one-sided limits of the derivative must also exist and be equal. We have
Now we solve for
and 
:
For
For the derivative to exist, the one-sided limits of the derivative must also exist and be equal. We have
Now we solve for