
Given point is
and slope(m) =
.
Because you know the slope and a point on the line,
\Use point - slope form
to write an equation of the line.
Let
=
and slope(m) =
.
(Substitute
7 for
,4 for
and m =
)
Rewrite in standard form Ax + By = C.
\
(Product of two sames signs is positive)
(Multiply each side by 2)
(Cancel common terms)
(Apply distributive property:
)
(Multiply:
)
(Apply distributive property:
)
(Multiply:
)
(Add 3xto each side)
(Apply commutative property:
)
(Apply additive inverse property:
)
(Apply additive identity property:
)
(Subtract 14 from each side)
(Apply additive inverse property:
)
(Apply additive identity property:
)
(Subtract:
)
Substitute
=
in equation
.

(Multiply:
)
(Subtract:
)
The equation satisfies the condition.
\So,The standard form equation is
.
The standard form equation is
.