
The line equation in slope-intercept form is
, where m is
the slope and b is the y-intercept.
\Find the y-intercept value by replacing m with
, y with 7 and x with 3 in
the equation
.

(Multiply:
)
(Add 9 to each side)
(Apply commutative property of addition:
)
(Apply additive inverse property:
)
(Add:
)
Replace m with
3 and b with 16 in the equation
.

(Simplify)
The slope-intercept form of the line equation is
.