4400 Higher November 2004 Paper 3 Q9
9 The straight line, \(\mathbf{L}\), passes through the points \((0, -1)\) and \((2, 3)\).

(a) Work out the gradient of \(\mathbf{L}\). (2)
(b) Write down the equation of \(\mathbf{L}\). (2)
(c) Write down the equation of another line that is parallel to \(\mathbf{L}\). (1)
| Scheme | Marks |
|---|---|
| v/h attempted | M1 |
| 2 | A1 |
| (2) |
| Scheme | Marks |
|---|---|
| \(y = 2x - 1\) | B2 |
| (2) |
Notes
B2: \(2x\): B1
\(-1\): B1; omit “\(y =\)”: −B1
| Scheme | Marks |
|---|---|
| \(y = 2x + c,\ c \neq -1\) | B1 |
| (1) | |
| (5 marks) |
Notes
B1: incl \(y = 2x\)