a.
Find the average speed from
a.
Answer to Problem 74RE
Explanation of Solution
Given information:
The following data represent the distances
Find the average speed from
Calculation:
The data in this table represents the distance
To find the average speed from
The initial time is
Hence, the average speed from
b.
Find the average speed from
b.
Answer to Problem 74RE
Explanation of Solution
Given information:
The following data represent the distances
Find the average speed from
Calculation:
The data in this table represents the distance
To find the average speed from
The initial time is
Hence, the average speed from
c.
Find the average speed from
c.
Answer to Problem 74RE
Explanation of Solution
Given information:
The following data represent the distances
Find the average speed from
Calculation:
The data in this table represents the distance
To find the average speed from
The initial time is
Hence, the average speed from
d.
Find the power function of best fit.
d.
Answer to Problem 74RE
Explanation of Solution
Given information:
The following data represent the distances
Using a graphing utility, find the power function of best fit.
Calculation: Use a best fit function on a graphing utility to find the quadratic function the best fits the data in the table.
On a graphing utility, enter the data points found in the table by hitting STAT, 1: Edit, and then entering the
Hence, the power function that fits the data in the table the best is
e.
Determine the instantaneous at
e.
Answer to Problem 74RE
Explanation of Solution
Given information:
The following data represent the distances
Using the function found in part (d) , determine the instantaneous at
Calculation:
To find the instantaneous speed at
Go to MATH, 8:nDeriv(, VARS, Y-VARS, 1:Function, 1:
Hence, after hitting enter, the calculator displays that the instantaneous speed at
Chapter 14 Solutions
Precalculus
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