Answer:
a
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
given
3x + 2y = 12 ( subtract 3x from both sides )
2y = - 3x + 12 ( divide through by 2 )
y = - [tex]\frac{3}{2}[/tex] x + 6 ← in slope- intercept form
with slope m = - [tex]\frac{3}{2}[/tex]