In the xy-plane, a line has slope 3 and x-intercept 4. What is the y-intercept of the line?	Choose the correct choice from the following answers:
A) -12
B) -3
C) 0
D) 3
E) 9
Let the line be represented by a general equation y=mx+b, where m = slope (3) and b=y intercept. We are also given the value of x-intercept 4.   Theory : y intercept represents the point on the line where the x=0, and x intercept represents the point on the line where the y=0.   Putting these values in the equation : 0 = 3*4 + b =&gt; b = -12. Hence -12.
<result>A</result>
In the xy-plane, a line has slope 3 and x-intercept 4. What is the y-intercept of the line?