It means that those 2 angles are the exact same length
Both x and y intercept equal 2 ( to find x, make y = 0 and vise versa to find y)
x-int: 4(0)+y=0
0+y= 2
y=2
y -int: 4x +0=2
4x=2
x=2
Dividing by a complex number is a similar process to the above - we multiply top and bottom of the fraction by the conjugate of the bottom.
Product means to multiple so I think it's rs