Sandy wishes to have a rectangular garden in her backyard. She has 40 ft of fencing with which to enclose her garden. Letting x denote the width of the garden, find a function f in the variable x that gives the area of the garden.
A) $f(x)=40 x-x^{2}, \quad 0 $ $

Question

Sandy wishes to have a rectangular garden in her backyard. She has 40 ft of fencing with which to enclose her garden. Letting x denote the width of the garden, find a function f in the variable x that gives the area of the garden. 
A) $f(x)=40 x-x^{2}, \quad 0 $ $< x$ $<20$. 
B) $f(x)=20 x-x^{2}, \quad 0 $ $< x$ $<20$ 
C) $f(x)=40 x-x^{2}, \quad 0 $ $< x$ $<40$ 
D) $f(x)=20 x-x^{2}, \quad 0 $ $< x$ $<20$.

Quizplus · Accepted Answer

The Answer of Sandy wishes to have a rectangular garden in her backyard. She has 40 ft of fencing with which to enclose her garden. Letting x denote the width of the garden, find a function f in the variable x that gives the area of the garden. 
A) $f(x)=40 x-x^{2}, \quad 0 $ $< x$ $<20$. 
B) $f(x)=20 x-x^{2}, \quad 0 $ $< x$ $<20$ 
C) $f(x)=40 x-x^{2}, \quad 0 $ $< x$ $<40$ 
D) $f(x)=20 x-x^{2}, \quad 0 $ $< x$ $<20$.

Sandy Wishes to Have a Rectangular Garden in Her Backyard f(x)=40x−x2,0f(x)=40 x-x^{2}, \quad 0 f(x)=40x−x2,0

Sandy Wishes to Have a Rectangular Garden in Her Backyard $f(x)=40 x-x^{2}, \quad 0$