def get_slope(r, sy, sx):
	"""
	Get the slope for a regression line having given parameters.

	Parameters
	----------
	> `r`: regrwssion coefficient of the line
	> `sy` sample standard deviation of y distribution
	> `sx`: sample standard deviation of x distribution

	Returns
	-------
	The slope of the given regression line with the above parameters.
	"""
	
	return r * (sy / sx)