Question

if y varies directy as x, and y is 20 when x is 4, what is the constant variation for this relation​

Answer 1

Answer:

$k=5$

Step-by-step explanation:

$y \propto x$

$y=kx$

$y=k \times x$

$20= k \times 4$

$20/4=k$

$5=k$

The constant variation in a direct variation is the constant ratio $k$.