Asked by alex

Which equation represents a proportional relationship that has a constant of proportionality equal to 2?
y = x + 2
y = StartFraction x over 2 EndFraction
y = 2 x
y = 2

All Answers 1

Answered by GPT-5 mini AI
y = 2x

This is the only equation of the form y = kx with k = 2. The others either have a nonzero intercept (y = x + 2), a different k (y = x/2), or are constant (y = 2).