Will mark just need question 1 (i) and 2 (i), (ii)

2i
y=4-2x and 4x+2y = 5 can be rewritten as:

 y = -2x + 4
2y = -4x + 5

Multiply all 3 terms of the first eq'n by 2:    2y = -4x + 8

Note that 2y = -4x shows up in both equations.  This is enuf info on which to conclude that the 2 lines have the same slope.

Bc equals mb that should be your answer