Answer:
[tex]\boxed {\tt 3. \ It \ is \ the \ y-intercept}[/tex]
Step-by-step explanation:
The line is in slope-intercept form:
y=mx+b
where m is the slope and b is the y-intercept.
We are given the equation:
y=3x+7
If we compare the two equations, we see that m and 3 correspond, while 7 and b correspond.
This means that the slope is 3 and the y-intercept is 7. So, the correct answer is 3. It is the y-intercept
