A Level Mathematics Questionbanks

= y = = A1 (-1 if not simplified) [8] 9. a) Gradient of curve y = x2 – x – 2 : m = = 2x – 1 M1 A1. At the point (2, 0), x = 2 hence m =2(2) –1 = 3. For normal, m = - M1 A1 f.t. y = -(x –2) M1 (use of line equation) 3y = -x +2. 3y + x = 2 A1 (simplified form) [6] b) 3y + x = 2. y = x2 – x – 2. 3x2 – 3x – 6 = 2 – x M1 (attempt ... ................
................

In order to avoid copyright disputes, this page is only a partial summary.