The first integer is going to be x and the second one is going to be y.
We now turn the clues into equations:
x = y - 5
xy = 84
The substitution method:
(y - 5)y = 84
y^2 - 5y - 84 = 0
(y+7)(y-12) = 0
y = -7, 12.
If y = -7, then x = -12.
If y = 12, then x = 7
We can use substitution to solve this equation in here y=6 and x=0 .
Hope this help you !
If x=10 than f(x)=1 because 2+8=10/10 =1
D perimeter because it’s measuring the outside which is where the fence goes