Respuesta :
You will substitute in 1.2 for y because it is the output value.
1.2 = x - 0.4
1.6 = x
So the input value for the output value of 1.2 is 1.6.
1.2 = x - 0.4
1.6 = x
So the input value for the output value of 1.2 is 1.6.