Write the equation of the line that is parallel to the line y=-3x+12 and passes through the point (-1,6)

This problem can be solved using the point-slope formula:

Where m is the slope
x₁ is the x value provided and 
y₁ is the y value provided.

Since this line is parallel, we know it will have the same slope as the original line, which is -3.  The x₁ value is -1, and the y₁ value is 6.  Plug these numbers into the equation and solve:

So don't take my word i'm not exactly a mathematical person but i would assume a. because while selling the soap every month you increase in sells so you would by 11 percent. the you would get the factor 0.89 which if i had to guess would be the monthly profit over 11 probably wrong tho