The y-intercept is :
7
Work/explanation:
The given equation is in y = mx + b form, where m = slope and b = y intercept. This equation is called slope intercept form.
In our case, the equation is y = 7, which is the same thing as y = 0x + 7; this means that the slope is 0 and the y-intercept is 7.
Hence, b = 7.