what is the equation on the line in point-slope form that has a slope of -3 and passes through the point of (5,9)?

a. y + 5 = -3(x - 9)
b. y - 5 = -3 (x -9 )
c. y - 9 = -3 ( x -5 )
d. y + 9 = -3 ( x -5 )