write in standard form of the equation of the line through the given point with given slope.
through (1,2) slope=7
In point slope form, the equation is:
y - 2 = 7(x - 1) Now get this equation into standard form ( Ax + By = C ).
Distribute 7 to the terms in parenthesees.
y - 2 = 7x - 7
Add 7 to both sides of the equation.
y + 5 = 7x
Subtract y from both sides.
5 = 7x - y
7x - y = 5