Point-slope formula is represented by the equation . When knowing a point a line crosses through and its slope, you can write an equation in this form. Substitute the , , and for real values.
The represents the slope of the line. Since we know the slope is -2, substitute -2 for . The and represent the x and y values of the point the line passes through. Since the line passes through (4, -6), substitute 4 for and -6 for . This gives the following answer and equation: