
Concept explainers
a.
To use the zero or root feature of a graphing utility to approximate (accurate to the nearest thousands) the zeros of the function.
a.

Answer to Problem 101E
Explanation of Solution
Given: Given function is
Concept Used:
Zeros are the values for x for which function gives zero value.
Calculation: To graph the function calculates the following points of the graph.
t | h(t) |
-2 | 0 |
-1 | 6 |
0.268 | 0 |
2 | -12 |
3.732 | 0 |
Graph the function on the above points
Where x- axis represents t and y -axis represents h(t).
b.
To find one of the exact zeros and use synthetic division to verify result.
b.

Answer to Problem 101E
t =-2 an exact zero of the given polynomial function.
Explanation of Solution
Given: Given function is
Concept Used:
Synthetic division is used here.
Calculation:
t =-2 looks like an exact zero. Confirm with synthetic division.
Using the bottom row as coefficient of the resulting polynomial from dividing h by (t +2).
c.
To factor the polynomial completely..
c.

Answer to Problem 101E
The complete factorization is,
Explanation of Solution
Given: Given function is
Concept Used:
Use the
Calculation:
The complete factorization is,
Chapter 2 Solutions
Precalculus with Limits: A Graphing Approach
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