SOLUTION: Suppose I want a garden with 400 square feet (area). Write an equation that can be used to find the values for x that result in that area. My thoughts are: A(x)=x*y or

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Question 603460: Suppose I want a garden with 400 square feet (area). Write an equation that can be used to find the values for x that result in that area.
My thoughts are:
A(x)=x*y
or

Found 2 solutions by ewatrrr, solver91311:
Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website!

Hi,
a garden with 400 square feet (area).
A = l*w = 400 square feet
20*20 , 10*40 , 8*50, few alternatives
If for ex, You wanted it to be 25ft long then width would be 16ft

Answer by solver91311(24713) (Show Source):
You can put this solution on YOUR website!

First off you cannot use because that says the function depends on when in fact the function depends on both and .

You can write:

But that doesn't do much for your specific situation where you want the area to be

The question you want to answer is: Given that the result must be a rectangle with an area of , if I choose a value for one of the dimensions of the rectangle, what must the other dimension, , be?

Start with

Divide by

John

My calculator said it, I believe it, that settles it