Answer:
slope = 0
Step-by-step explanation:
Calculate m using the slope formula
m = 
with (x₁, y₁ ) = (4, - 1 ) and (x₂, y₂ ) = (3, - 1 )
m =
=
=
= 0
Answer:
(a)
(b)P'(5)=-($4.54) Thousand
(c)P'(11)=-($2.10) Thousand
(d)The fifth Month
Step-by-step explanation:
Given the monthly profit model:

(a)We want to derive a model that gives the Marginal Profit, P' of the book.
We differentiate
using quotient rule.

Simplifying

We have derived a model for the marginal profit.
(b) After 5 months, at t=5
Marginal Profit=P'(5)


=-($4.54) Thousand of dollars
(c)Marginal Profit 11 Months after book release

=-($2.10) Thousand of dollars
(d) Since the marginal profit at t=5 is negative, after the 5th Month, the profit starts to experience a steady decrease.
+ 32
and
- 5
will do that job for you.
If i’m not mistaken, it should be 2/10, or 20/100. and it’s percentage would be 20%