d. Describe what these successive changes in Sally's distance from her house for equal change in the number of minutes since Sally started walking tell you about how Sally's distance from her house is changing over the time interval from 1 = 0 to i = 30 minutes. e. Describe how Sally's speed (in yards per minute) is changing as the number minutes since Sally started walking increases from 0 to 30 minutes.
d. Describe what these successive changes in Sally's distance from her house for equal change in the number of minutes since Sally started walking tell you about how Sally's distance from her house is changing over the time interval from 1 = 0 to i = 30 minutes. e. Describe how Sally's speed (in yards per minute) is changing as the number minutes since Sally started walking increases from 0 to 30 minutes.
Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter8: Functions
Section8.3: Quadratic Functions
Problem 50PS
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parts d and e, they are asking in terms of average rate of change, change in distance, change in minutes, which values are increasing/decreasing and concavity. someone has answered a-c for me on here already.
Transcribed Image Text:20. The graph below represents Sally's distance from her house in terms of the number of minutes t since
Sally started walking.
2500-
2000-
(20, 1950)
1500-
1000+
500-
10
Number ol minulos sinco Sally starled walking
a. Interpret the meaning of the point (20, 1950).
b. Represent the changes in Sally's distance from her house (in feet) from 0 minutes to 10 minutes;
from 10 minutes to 20 minutes; and from 30 minutes to 4 minutes.
c. What do you notice about the change in Sally's distance from her house for successive equal
changes in the number of minutes since Sally started walking?
d. Describe what these successive changes in Sally's distance from her house for equal change in
the number of minutes since Sally started walking tell you about how Sally's distance from her
house is changing over the time interval from t = 0 to 1 = 30 minutes.
e. Describe how Sally's speed (in yards per minute) is changing as the number minutes since Sally
started walking increases from 0 to 30 minutes.
Sally's distance from her house (in yards)
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