Final answer:
The equation used when writing the equation of a line without the y-intercept is Standard form (c).
Step-by-step explanation:
The equation you use when writing the equation of a line without the y-intercept (b-value) is Standard form (c) .
Standard form of a linear equation is given by Ax + By = C, where A, B, and C are integers and A and B are not both zero.
For example, the equation 4x - 3y = 12 is in standard form.