Focus on the x-axis. The intercept of the axis and the function is 0 and 6. It's at the positive side.
x=0, x=6
The following answers are called zeros.
X=length
x+4=width




It means that length will be equal 10 and width 14 :)
so dimensions of this rectangle is 10x14 :)
This is the concept of scales factors, given that two similar solids with 729 inches^3 and 125 inches^3. The volume scale factor will be given by:
(volume of larger solid)/(volume of smaller solid)
=729/125
but
linear scale factor=(volume scale factor)^1/3
thus the linear scale factor will be:
(729/125)^1/3
=9/5
Also, area scale factor will be given by:
area scale factor=(linear scale factor)^2
=(9/5)^2
=81/25
The area of the larger solid will be given by:
let the area be A;
A/74.32=81/25
thus
A=81/25*74.32
A=240.7968 inches^2
X=-3
2x=4x+6
-2x=6
Divide by -2
X=-3