Answer:
b=2
Explanation:
Changing the y-intercept would move the graph down or up.
So we have the equation
.
We want to move the graph down 3 units. We want the y-intercept to be 3 units lower than what is was. Since 5-3 is 2, then the new y-intercept is 2.
The equation would then be
.
So b=2.