Just to warn the person who wanted a correct answer! The correct answer is NOT:, so IGNORE, IGNORE, IGNORE it.
You have a better chance of getting the correct answer if you try to do it yourself!
JUST A WARNING! Most people already know this!
The slope is m == = = . The equation of the straight line is y - 6 = {{(-3/2)*(x-(-3))}}}, or, which is the same, y - 6 = , or, which is the same, 2y - 12 = -3x - 9, or, which is the same, 3x + 2y = 3.
| x y 1| |-3 6 1| = 0 | 5 -6 1|