# By using T1-83 calculator, determine whether the given function p ( x ) = 3.3 + 1.6 x − 2.5 x 3 is one −to − one. ### Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071 ### Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

#### Solutions

Chapter 2, Problem 85RE
To determine

## By using T1-83 calculator, determine whether the given function p(x)=3.3+1.6x−2.5x3 is one −to − one.

Expert Solution

Hence, p is not one −to − one.

### Explanation of Solution

Given information: Consider the function p(x)=3.3+1.6x2.5x3

Calculation:

Press the Y= Button and enter the function Y1=3.3+1.6×2.5×3 and Y2=3 Once this is done on the WINDOW screen

X min=10

X max=10

Y min=10

Y max=10

This gives a range that is good for many

Varied graph types

Set the window Then click the GRAPH button. From the above graph, observe that the horizontal line that intersects the graph of p more than once.

Hence the horizontal line test p is not one −to − one.

### Have a homework question?

Subscribe to bartleby learn! Ask subject matter experts 30 homework questions each month. Plus, you’ll have access to millions of step-by-step textbook answers! 