Answer:
slope= 1/2
Explanation:
3x-6y=90
rewrite the equation into slope intercept form
y=1/2x-15
subtracting is the same as adding the opposites
y=1/2x+(-15)
since the equation is written in slope intercept form, y=mx+b, identify the slope of the line as the coefficient next to the variable x
y=1/2x+(-15), m=1/2
identify the y intercept of the lines as the constant term
y=1/2x+(-15),m(slope)=1/2,b=-15