Respuesta :
Answer:
i) this does not show direct variation.
ii) this shows direct variation
iii) this shows direct variation
iv) (2x-5y) + (x+y) = 3x - 4y
v) (7x-5) - (3x-2) = 4x - 3
Step-by-step explanation:
i.) y - x = 4 this does not show direct variation.
ii) x - y = 0 [tex]\Rightarrow[/tex] x = y this shows direct variation
iii) 8 = xy [tex]\Rightarrow[/tex] 8/x = y this shows direct variation
iv) the sum of (2x-5y) and (x+y) [tex]\Rightarrow[/tex] (2x-5y) + (x+y) = 3x - 4y
v) expression that is equivalent to (7x-5) - (3x-2)
[tex]\Rightarrow[/tex] (7x-5) - (3x-2) = 4x - 5 + 2 = 4x - 3
