If the equation of a line has a slope of 2 and passes through the point (1,3), which form would be used to write the equation of the line? 1.) y intercept form 2.) x intercept form 3.) point- slope form 4.) slope-intercept form

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?