I'm having a bit of trouble plotting the regression line of multivariable linear model.

Specifically my model has one response and two predictors, i.e. it's of the form

Y = b_0+b_1*X_1+b_2*X_2

Plotting the regression line for a single predictor model

Y = b_0+b_1*X_1

is simple enough, just call abline() with the coefficients returned by lm().

However, I don't know if this can be adapted to multivariable linear models.

I also know about curve(), but I don't know how am I supposed to input the multivariable model's coefficients into it.

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