SOLUTION: A poster is 15 inches longer than it is wide. Find a function that models its area A in terms of its width w.

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Question 213390: A poster is 15 inches longer than it is wide. Find a function that models its area A in terms of its width w.
Found 2 solutions by RAY100, drj:
Answer by RAY100(1637) About Me  (Show Source):
You can put this solution on YOUR website!
Area = Length * Width
.
but L= W +15,,,,,,,subst
.
A = (w+15) * (w)
.
A = w^2 + 15w
.

Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
A poster is 15 inches longer than it is wide. Find a function that models its area A in terms of its width w.

Step 1. Length L is w+15.

Step 2. Area of Poster A is equal to length times width

A=Lw=w%28w%2B15%29

A=w%28w%2B15%29=w%5E2%2B15w ANSWER

I hope the above steps were helpful.

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Respectfully,
Dr J