Respuesta :
Answer:
y=3x ( the'=' sign is the proportionality sign)
Step-by-step explanation:
x = 1 , 2 , 3 , 4
y = 3 , 6 , 9 , 12
You are multiplying by 3 to get to y
1 x 3 = 3
2 x 3 = 6
3 x 3 = 9
4 x 3 = 12
well the table would look like this
x y
1 3
2 6
3 9
4 12
and the direct variation is y=3x but the constant of variation is k=3