Question one

farmer jones has 140 feet of fencing to construct a rectangular corral.

if x represents the width of the corral, which function can be used to express the area a of the

corral as a function of x?

a

a(x) = 70.0

b

a(z) = 2(70 - 2)

c

a(x) = a(140 – 2)

d

a(z) = x(140 – 22)

Step-by-step explanation:

Let

x ----> the width of the rectangular corral

y ----> the length of the rectangular corral

we know that

The perimeter of the rectangular corral is equal to

so

simplify

----> equation A

Remember that

The area of a rectangle is equal to

----> equation B

substitute equation A in equation B

Convert to function notation

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d