B:
Crossing the Y axis (y-intercept) means that the X value is zero. So, plug zero into the equation.
Y = 3(0)+1
Y =1
So the ordered pair for the Y intercept is (0,1)
For the X intercept, the Y value is equal to zero, so do the same thing except with Y
0 = 3(x) +1
-1 = 3x
x=-1/3
So the ordered pair is (-1/3,0)
E
Y intercept: (0,0)
X intercept (0,0)