Question

the area of a rectangle whose width is 3 less than half its length can be found by the polynomial $a(l)=\frac{1}{2}l^{2}-3l$. which of the following are the two related quantities represented by this polynomial? enter the number of the correct quantity.

• quantity #1: length of the rectangle and width of the rectangle
• quantity #2: width of the rectangle and perimeter of the rectangle
• quantity #3: perimeter of the rectangle and area of the rectangle
• quantity #4: area of the rectangle and length of the rectangle

(1 point)
the two related quantities represented by this polynomial are
quantity #

Explanation:

Step1: Analyze the polynomial

The polynomial is $A(l)=\frac{1}{2}l^{2}-3l$, where $A$ represents the area of the rectangle and $l$ represents the length of the rectangle.

Step2: Identify related - quantities

The variables in the polynomial are the area $A$ and the length $l$ of the rectangle.

Answer:

Quantity #4