1/2x + 3/4y = 4 ....multiply everything by 4
2x + 3y = 16
3y = -2x + 16
y = -2/3x + 16/3
In y = mx + b form, the slope will be in the m position and the y int will be in the b position
y = mx + b
y = -2/3x + 16/3
so ur slope is -2/3 and ur y int is (0,16/3)