↔↔ ab and bc 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 ↔ and the equation of bc is y= x + if the y-coordinate of point c is 13, its x-coordinate is

1.

2.

3.

Step-by-step explanation:

The equation of the line that passes trough the points A(14,-1) and B(2,1) is

The y-intercept of this line is

Line BC is perpendicular to line AB, then its slope is Line BC passes through the point B, so

If the y-coordinate of point C is 13, then x-coordinate is