SmarterChoices SmarterChoices 16-12-2016 English contestada Which equation represents a linear function? Equation 1: y = 2x2 + 1 Equation 2: y2 = 8x + 1 Equation 3: y = 5x3 – 1 Equation 4: y = 7x – 1 a) Equation 1 b) Equation 2 c) Equation 3 d)Equation 4