Respuesta :
No, over time too many variables change or shift, which throws off the predictability of the trend line.
No, extrapolation using a straight line not reliable.
What is extrapolation?
Extrapolation is defined as an estimation of a value based on extending the known series or factors beyond the area that is certainly known. In other words, extrapolation is a method in which the data values are considered as points such as x1, x2, ….., xn.
It commonly exists in statistical data very often, if that data is sampled periodically and it approximates the next data point." Since, Extrapolation is a method of estimation for hypothetical values that fall outside of a data set and a straight line doesn't fits all the point that's near or away from the straight line. A line doesn't fits all the data points.
Hence, extrapolation using a straight line not reliable.
To know more about extrapolation here
https://brainly.com/question/18768845
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