Question

Which of the following quantities are directly proportional?

Answer 1

Answer: Directly proportional

Step-by-step explanation:

Answer 2

Answer:

They are directly proportional.

$A=6l$

Step-by-step explanation:

The area of a rectangle is

$A= l \times w$

Where $l$ is length and $w$ is width.

Now, if its width is 6 cm, then

$A=6l$

Now, this equation states that the area of the rectangle and its length are directly proportional, because if we increase the length, then the area will be also increased. Remember that a direct proportion between two magnitudes is where they both increase or decrease at the same time.

Therefore, they are directly proportional.