Question

Use the given x and y values to write a direct variation
equation.
x = 5, y = 25

Answer 1

Answer:

k= 1/5

Step-by-step explanation:

x is proportional to y

x = ky (k is const.)

k = x/y

k= 5/25

k = 1/5

Answer 2

Answer:

Equation of direct variation is : $\mathbf{y=5x}$

Step-by-step explanation:

We are given: x= 5 and y=25

We need to write equation of direct variation.

The formula for direct variation is: $\mathbf{y=kx}$

So, if y=25 and x=5, k will be:

$y=kx\\25=k(5)\\k=\frac{25}{5}\\k=5$

So, equation of direct variation is : $\mathbf{y=5x}$