What is the y intercept of equation 15y=7.50x-750?

In the equation y=mx+b, the b value represents the y intercept. However, y must be completely isolated. You must divide all numbers by 15. The y intercept is equal to - 750/15 which equals - 50

Yint is where the line crosses the y axis or where x=0

15y=7.5 (0) - 750

15y=-750

divide both sides by 15

y=-50

yint is at y=-50 or (0,-50)