Lesson 1 Page 78 #1 1. A rectangular schoolyard is to be fenced in using the wall of the school for one side and 150 meters of fencing for the other three sides. The area b. What is the area of the schoolyard when x= 40? A(x) in square meters of the schoolyard is a function of the length x in meters of each of the sides perpendicular to the school wall. Write an expression for A(x). a. с. What is a reasonable domain for x in this context? Suhmit

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