Question

Use the given x and y values to write a direct variation
equation.
x = 2, y = 30

Answer 1

y = 15x

Explanation:

Given x and y are in direct variation then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition x = 2, y = 30, then

30 = 2k ( divide both sides by 2 )

15 = k

y = 15x ← equation of variation