   Chapter 9.1, Problem 56E ### Mathematical Applications for the ...

11th Edition
Ronald J. Harshbarger + 1 other
ISBN: 9781305108042

#### Solutions

Chapter
Section ### Mathematical Applications for the ...

11th Edition
Ronald J. Harshbarger + 1 other
ISBN: 9781305108042
Textbook Problem

# Sales and training During the first 4 months of employment, the monthly sales S (in thousands of dollars) for a new salesperson depend on the number of hours x of training as follows: S = S ( x ) = 9 x + 10 + x 4 , x ≥ 4 (a) Find lim x → 4 + S ( x ) .(b) Find lim x → 10 S ( x ) .

(a)

To determine

To calculate: The value of the limit limx4+S(x) where S(x)=9x+10+x4.

Explanation

Given Information:

The limit is limx4+S(x).

The average monthly sales volume (in thousands of dollars) for a salesperson depend on the number of hours x of training of its sale staff, according to, S(x)=9x+10+x4.

Formula used:

For a polynomial function f(x)=anxn+an1xn1++a1x+a0 where an0 and n is a positive integer,

limxcf(x)=f(c)

This is defined for all values of c

(b)

To determine

To calculate: The value of the limit limx10S(x) where S(x)=4x+30+x4.

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