Answer:
y = 81
Step-by-step explanation:
Use the direct variation equation, y = kx
Plug in 9 as x and 27 as y, then solve for k
y = kx
27 = k(9)
3 = k
So, the direct variation equation is y = 3x
Plug in 27 as x and solve for y
y = 3(27)
y = 81
So, when x = 27, y = 81
