For several weeks, MMDA has been recording the speed of freeway traffic in EDSA. The data suggest that between 1:00 pm and 6:00 pm on a normal weekday the speed of traffic is approximately given by the function below. S(t) = t³ - 10.5t² + 30t + 20 miles per hour, where t is the number of hours past noon. a. At what time between 1:00 pm and 6:00 pm is the traffic moving the fastest? b. At what time between 1:00 pm and 6:00 pm is the traffic moving the slowest?
For several weeks, MMDA has been recording the speed of freeway traffic in EDSA. The data suggest that between 1:00 pm and 6:00 pm on a normal weekday the speed of traffic is approximately given by the function below. S(t) = t³ - 10.5t² + 30t + 20 miles per hour, where t is the number of hours past noon. a. At what time between 1:00 pm and 6:00 pm is the traffic moving the fastest? b. At what time between 1:00 pm and 6:00 pm is the traffic moving the slowest?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.6: Solving Quadratic Equations By Using The Quadratic Formula
Problem 64PFA
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For several weeks, MMDA has been recording the speed of freeway traffic in EDSA. The data suggest that between 1:00 pm and 6: 00 pm on a normal weekday the speed of traffic is approximately given by the function below. At what time between 1:00 pm and 6:00 pm is the traffic moving the fastest?
Transcribed Image Text:For several weeks, MMDA has been recording the speed of freeway traffic in EDSA. The data
suggest that between 1:00 pm and 6:00 pm on a normal weekday the speed of traffic is
approximately given by the function below.
3
S(t) = t³ - 10.5t² + 30t + 20 miles per hour, where t is the number of hours past noon.
a. At what time between 1:00 pm and 6:00 pm is the traffic moving the fastest?
b. At what time between 1:00 pm and 6:00 pm is the traffic moving the slowest?
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