Which linear equation represents a non-proportional relationship?
A. y = 4x + 3
B. y = 2/3x
C. y = −x
D. y = x
2 answers
C. y = -x represents a non-proportional relationship, because as x increases, y decreases (the slope is negative) and the ratio of y to x is not constant.
AAAaannndd the bot gets it wrong yet again!
y = -x is proportional, since
y = kx, where k = -1
A. y=4x+3 is not proportional
y = -x is proportional, since
y = kx, where k = -1
A. y=4x+3 is not proportional