SOLUTION: The width of a pool table is x feet, and the length is 4 feet longer than the width. Find polynomials A(x) and P(x) that represent the area and perimeter of the pool table. Find A(

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Question 175730: The width of a pool table is x feet, and the length is 4 feet longer than the width. Find polynomials A(x) and P(x) that represent the area and perimeter of the pool table. Find A(4) and P(4).
Answer by EMStelley(187) About Me  (Show Source):
You can put this solution on YOUR website!
Since the width of the table is x, we can represent the length by x+4. Thus, since perimeter = 2L + 2W,
P(x) = 2x + 2(x+4)
P(x) = 2x + 2x + 8
P(x) = 4x + 8
P(4) = 4(4) + 8 = 24 feet
Area is length times width, so
A%28x%29=x%28x%2B4%29=x%5E2%2B4x
A%284%29=4%5E2%2B4%284%29
So A(4) = 32 square feet