The equation given is: A=25w
This equation gives the area A (in square feet) of a rectangular dance floor with a width of w feet.
As we can clearly see, the area of the rectangular dance floor is dependent on the value of the width,w. As we increase the width, w, the area, A increases and as we decrease, w, A too decreases.
Therefore, the independent variable is "w" and the dependent variable is "A".
