What is the equation of this line?
y=4/5x+3
y=4/5x−3
y=−4/5x−3
y=5/4x−3

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.