Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar.
and 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 is
and the equation of is y =
x +
.

if the y-coordinate of point c is 13, its x-coordinate is
.