Final answer:
The equation of the line passing through the point (-3,-1) with a slope of -2 is y = -2x - 7.
Step-by-step explanation:
To find the equation of a line, we can use the formula y = mx + b, where m is the slope and b is the y-intercept.
Given that the slope is -2 and the point (-3,-1) lies on the line, we can substitute these values into the formula to find the y-intercept.
By substituting the values, we can solve for b: -1 = (-2)(-3) + b. Simplifying this equation gives us b = -1 - 6 = -7.
Therefore, the equation of the line is y = -2x - 7.