The points are
.
Apply slope formula:
.
(Substitute
)

(Simplify)
Apply point-slope form of the line equation is
, where
are the coordinates of a point on the line and m is the slope of a line.
(Substitute
)
Apply distributive property:
.

(Simplify)
(Add 3.4 to each side)

(Simplify)
The line equation is
.