why the slopes of two segmented lines change in recognition of breakpoints in linear regression? why do lines have two segments? why are slopes of two lines important in a regression when to use the slope of two segmented lines why are slopes important in linear regression do two segmented lines show a breakpoint? are segmented lines important in recognition of breakpoints why are two segments of a linear regression necessary in recognition? do two segmented lines show a breakpoint what is the function of slope why is a slope of two segments important in a regression model why is the slope of two segments important when does a linear regression breakpoint change why are the slopes of two segmented lines important in recognition of a breakpoint? why is the slope of two segmented lines important to the recognition of a breakpoint why are slopes important what is the importance of two segments on linear regression lines why is the slope of two segmented lines important why is slope important why segmented lines are important