Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. ab and bť form a right angle at their point of intersection, b if the coordinates of a and b are (14, -1) and (2,1), respectively, the y-intercept of ab is um is y= x+ 0 . and the equation of bć if the y-coordinate of point cis 13, its x-coordinate is