Question

Which of the following is true?

• A. The constant of proportionality in the above graph is 1.
• B. The constant of proportionality in the above graph is $\frac{1}{x}$
• C. $x$ and $y$ are in inverse proportion
• D. The constant of proportionality in the above graph is $\frac{1}{y}$

Answer 1

The correct option is A

The constant of proportionality in the above graph is 1.

The equation of the line is $y=x$.

Thus, the constant of proportionality in the above relation is 1,

$x$ and $y$ are in direct proportion.