Question

Find an equation of variation where y varies directly as x and y = 7 when x = 0.5 .

Answer 1

y = 14x

Explanation:

Use the direct variation equation, y = kx

Plug in 7 as y and 0.5 as x, and solve for k:

y = kx

7 = k(0.5)

14 = k

Plug this into the equation:

y = kx

y = 14x

So, the equation of variation is y = 14x