Write a function rule for the area of a rectangle whose length is 4in. more than it’s width. what is the area of the rectangle when it’s width is 8in?

L=4+W

A=(4+w) (w)

Then substitute 8 in for w

A(8)=(4+8) (8)=(12(8)

                       =96  

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.