hi. how do we do it if we use simply linear model not optimizer like gradient descent.

Is there any link to how it is done with gradient descent? thanks

hi everyone.

Considering a multivariate problem such as weather prediction using linear models.

with x1,x2,x3,x4,x5 to predict weather y. how do we find how much we need to increase or decrease x2 to get our desired treshhold y ????

is it only way to change manually y=wx+b ????

Thanks for kind suggestions and directions.