The equation of line with the slope m in the slope intercept form is :
y = mx + b
Slope can express as :

Substitute the value :


Substitute the value of slope in the equation of line:

Equation of line in slope intercept form is :
y = -3/2x + 3
Slope = -3/2
Answer : y = -3/2x + 3
Slope = -3/2