Question

Given that $x$ and $y$ are in inverse proportion, and $y_1,y_2$ are values of $y$ corresponding to the values $x_1,x_2$ of $x$ respectively. Which of the following is correct?

• A. x₁y₂=x₂y₁
• B. x₁y₁=x₂y₂
• C. x₁x₂=y₁y₂
• D. =

Answer 1

The correct option is B

x₁y₁=x₂y₂

If $x$ and $y$ are in inverse proportion, and $y_1,y_2$ are values of $y$ corresponding to the values $x_1,x_2$ of $x$ respectively, then $x_1{y}_1=x_2{y}_2$