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)

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)