Which linear equation represents a non-proportional relationship? a) y = 0.2x. b) y = 1/2x, c) y = −1/2x, y = −1/2x + 5

Choose the right classification of 5x + 3x^4 - 7x^3 + 10 by number terms and he degree 1. third degree polynomial 2. fourth degree polynomial 3. sixth degree polynomial 4. first degree binomial