Determine the degree of each relation. i) y = 5x – 2 ii) y = x^2 – 6x + 4 iii) Determine the degree of each relation. i) y = 5x – 2 ii) y = x^2 – 6x + 4 iii) y = x(x + 4) iv) y = 2x^3 – 4x^2 + 5x – 1