The equation \( y - y_1 = m(x - x_1) \) is known as the point-slope form of a linear equation. In this form:
- \( m \) represents the slope of the line.
- \( (x_1, y_1) \) is a specific point on the line.
To write an equation in this form, we need the slope \( m \) and any point on the line \( (x_1, y_1) \).
Therefore, the correct statement about the equation is:
This is point-slope form, and we need the slope m and any point on the line (x1, y1) to write an equation in this form.