Answer:
y-int: 7
Explanation:
the y intercept of an equation is the "b" in, y=mx+b
For this problem you have to convert the current equation to y=mx+b form
4x+y=7
-4x -4x
y= -4x +7
7 is your b, which is your y intercept
if you have any questions, don't hesitate to ask :)