Kelly is tasked with having to use the vertical line test to determine whether or not a curve is a function. each vertical line that kelly draws through her curve must intersect the curve at how many points in order for the curve to be a function ?

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.