Which inverse trig function could I use to solve this problem?

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

X-10/4 when x = –18 a 7 b –2 c –7 d 2

The function f(x) is shown in this graph the function g(x)=6x