def predict_y(x0, m, c):
	"""
	Predict the value yhat for a regression line with the given parameters.

	Parameters
	----------
	> `x0`: the value of predictor
	> `m`: slope of the regression line
	> `c`: y-intercept of the regression line

	Returns
	-------
	The predicted value of y for the above given parameters.
	"""

	return (m * x0) + c