Suppose a person wants to travel D miles at a constant speed of (60+x) mi/hr, where x could be positive or negative. The time in minutes required to travel D miles is T(x) = 60D(60+x) 1 a. Given the linear approximation to T at the point x = 0 is T(x) L(x) = D time it takes to drive 78 miles at 61 mi/hr. b. What is the exact time required? 60 use L(x) to approximate the amount of a. The approximate time is min. (Round to the nearest whole number as needed.)
Suppose a person wants to travel D miles at a constant speed of (60+x) mi/hr, where x could be positive or negative. The time in minutes required to travel D miles is T(x) = 60D(60+x) 1 a. Given the linear approximation to T at the point x = 0 is T(x) L(x) = D time it takes to drive 78 miles at 61 mi/hr. b. What is the exact time required? 60 use L(x) to approximate the amount of a. The approximate time is min. (Round to the nearest whole number as needed.)
Chapter3: Polynomial Functions
Section3.5: Mathematical Modeling And Variation
Problem 7ECP: The kinetic energy E of an object varies jointly with the object’s mass m and the square of the...
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Transcribed Image Text:Suppose a person wants to travel D miles at a constant speed of (60+x) mi/hr, where x could be positive or negative. The
time in minutes required to travel D miles is T(x) = 60D(60+x)
X
a. Given the linear approximation to T at the point x = 0 is T(x) L(x) =D 1-
time it takes to drive 78 miles at 61 mi/hr.
60
use L(x) to approximate the amount of
b. What is the exact time required?
a. The approximate time is
min (Round to the nearest whole number as needed.)
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