If the line is parallel to the image of the positive scale function y = - 3x and passes through the point (2, - 1), the functional expression of the line is?

If the line is parallel to the image of the positive scale function y = - 3x and passes through the point (2, - 1), the functional expression of the line is?

The line is parallel to the image of the positive scale function y = - 3x
So let y = - 3x + B
(2, - 1) substituting y = - 3x + B
We get - 1 = - 3 * 2 + B
-1=-6+b
b=5
So the function of this line is y = - 3x + 5