The answer should be B.
y=4x implies y is for times of x. So x:y::1:4
Which equation(s) represents a proportional relationship?
A) y = 5 + x
B) y = 4x
C) y = 7x²
D) y = 2 - x
1 answer
A) y = 5 + x
B) y = 4x
C) y = 7x²
D) y = 2 - x
1 answer