Darnell has recorded the estimated value of his car each year since 2017. Let x=1 correspond to the year 2017. Find the slope-intercept form of the equation for the line that passes through the points representing the value of his car in 2017, (1,24,000) , and the value of his car in 2021, (5,16,700) . Round the slope to the nearest hundredth, if necessary.