Given the following equation Tip = -0.35 + 0.23 * BillAmount, how should we interpret the intercept? O If the bill amount is zero, then the predicted tip amount is negative $0.23 O If the bill amount is zero, then the predicted tip amount is negative $0.35 O If the bill amount is zero, then the predicted tip amount is positive $0.23 O If the bill amount is zero, then the predicted tip amount is positive 0.35