The length of a rectangle is represented by the function L(x) = 5x. The width of that same rectangle is represented by the funct
ion W(x) = 2x^2 − 4x + 13. Which of the following shows the area of the rectangle in terms of x?
2 answers:
Recall that Rectangle area is the multiple of W*L
So Multiply both equations, you will get the area in terms of x.
The answer would be => A(x)=10x^3-20x^2+65x
Hope this helps :)
Remember that the area of a rectangle is the length of the rectangle multiplied by the width of the rectangle.
In this case, we could say (where
is the area of the rectangle):

Substituting the values the problem gave us for
and
, we can find the formula for
in terms of
, which is:

The formula for the area of the rectangle would be A(x) = 10x³ - 20x² + 65x.
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