To find the equation use this form:
y - y0 = m * (x - x0)
y - 0 = 2 (x - 7)
y = 2x - 14
That is the slope intercept form
The standard form is Ax + By = C
Where A, B and C have to be integer and simplified (divided by the greatest common divisor of A, B and C).
Starting with y = 2x -14
2x - y = 14.
Tha is the standard form