SmarterChoices SmarterChoices 16-12-2016 Mathematics contestada Which equation represents a linear function? Equation 1: y3 = 2x + 1 Equation 2: y = 3x + 1 Equation 3: y = 5x2 − 1 Equation 4: y = 4x4 − 1 a Equation 1 b Equation 2 c Equation 3 d Equation 4