Question: Data Science: I have a dataframe with columns x, y, and z.The values I used to create a 3D subplots scatterplot. 1. How can I

Data Science: I have a dataframe with columns x, y, and z.The values I used to create a 3D subplots scatterplot. 1. How can I compute z_test by invoking the model's predict(), the values to compute z_test are: x_test = np.linspace(0,21,1000) y_test = x_test, 2. what code to find the line of best fit and plot it.

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