Higher January 2019 Paper 2 Q10
10 The line L is drawn on the grid.
Find an equation for L.
(3)
| Scheme | Marks |
|---|---|
| \(3 \div 2\) (=1.5) or eg \(\dfrac{4 - 1}{2 - 0}\) (corrected from the printed mark scheme: \(\dfrac{4 - 1}{2(-0)}\)) or \(c = 1\) | M1 |
| \(y = \text{``}{1.5}\text{''}x + c\) or \(y = mx + 1\) or eg \(y - 4 = m(x - 2)\) | M1 |
| \(y = 1.5x + 1\) oe | A1 |
| (3) | |
| (3 marks) |
Notes
M1: for correct method to find gradient – may see this on grid. For \(c = 1\), could be (\(L\) =) \(mx + 1\) oe or for \(1.5x + c\)
M1: for use of \(y = mx + c\) with either \(m\) or \(c\) or for (\(L\) =) \(1.5x + 1\)
A1: oe eg \(y - 4 = \dfrac{3}{2}(x - 2)\)