Question

Establish the relationship between x and y and find the constant of proportionality $k$.

• A. $y\propto x,k=5$
• B. $y\propto \frac{1}{x},k=6$
• C. $y\propto x,k=6$
• D. $y\propto \frac{1}{x},k=5$

Answer 1

The correct option is B $y\propto \frac{1}{x},k=6$


We can see that $x\times y=$ some constant value from the entire table.

Hence, $x\times y=3\times 2=-2\times -3=k=6$.