How many real roots do the following relations have? (4 marks) (i.) y = –2x²– 3x + 1
(ii.) y = 5x² – 3x + 4

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =