The given vertices of the triangle are
.
Find an equation of median from Vertex F to midpoint of
.
The midpoint of
.
The endpoints of the median are
.
The slope of the median is 
(Point-slope form)
(Substitute
,
)
(Distributive property)
(Add 2 to each side)
(Add 4x to each side)
Find an equation of median from Vertex E to midpoint of
.
The midpoint of
.
The endpoints of the median are
.
The slope of the median is 
(Point-slope form)
(Substitute
,
)
(Multiply each side by 4)
(Distributive property)
(Add 12 to each side)
(Add x to each side)
Solve a system of equations to find the point of intersection of the medians.
\
So,
.
Use y value to determine the x-coordinate.
\
(Write the equation)
(Substitute
)
(Simplify)
(Subtract
from each side)
So, 
The coordinates of centroid are
.