The line equation in slope-intercept form is
, where m is
the slope and b is the y-intercept.
\First find the slope of the line.
\
(Substitute 5 for x1, 2 for y1,
7 for x2 and
4 for y2)
(Simplify)
Substitute
and x1 = 5 and y1 = 2 in point-slope formula

(Apply distributive property)
(Add 2 to each side)
(Additive inverse proeprty:
)
(Add:
)
The slope-intercept form line equation is
.