Question

@mathstudent55

My answer is A, but I just need you to check it.

Answer 1

A neither

Answer 2

All given values of x and y are positive.
Since as x gets larger, y gets smaller, it cannot be a direct variation.

An inverse variation has the general equation:

\(y = \dfrac{k}{x} \)

for some value of k.

Answer 3

Let's use two points and see if they give the same value of k.

\(y = \dfrac{k}{x}\)

For (2, 40)

\(40 = \dfrac{k}{2} \)

\(k = 80\)

For (5, 20)

\(20 = \dfrac{k}{5} \)

\(k = 100\)

Since we get two different values of k for two different points, it is not an inverse variation either.
Answer: A.

Answer 4

Thank you for explaining it.

Answer 5

You're welcome.