Respuesta :
y = kx
k = y / x = 5/4 = 1.25
so
y =8 then
8 = 1.25 x
x = 8/ 1.25 = 6.4
answer
x = 6.4 when y = 8
k = y / x = 5/4 = 1.25
so
y =8 then
8 = 1.25 x
x = 8/ 1.25 = 6.4
answer
x = 6.4 when y = 8