3. Which of the following statements is correct for the function A(I)=-x²+9x, where A(I) is the area of a rectangle of length I in square meters? a. The area has a minimum value of 40- square meters. b. The area equals 18 square meters when the length is 0 meters. C. The area equals 40 square meters when the length is 9 meters. d. The area has a maximum value of 9 square meters.
3. Which of the following statements is correct for the function A(I)=-x²+9x, where A(I) is the area of a rectangle of length I in square meters? a. The area has a minimum value of 40- square meters. b. The area equals 18 square meters when the length is 0 meters. C. The area equals 40 square meters when the length is 9 meters. d. The area has a maximum value of 9 square meters.
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Transcribed Image Text:3. Which of the following statements is correct for the function A(l)=-x²+9x,
where A(l) is the area of a rectangle of length I in square meters?
a. The area has a minimum value of 40- square meters.
b. The area equals 18 square meters when the length is 0 meters.
C. The area equals 40 square meters when the length is 9 meters.
d. The area has a maximum value of 9 square meters.
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