1MA0 Foundation June 2013 Paper 1 Q29

EdexcelFoundationOld spec3 marksDrawing & Using Graphs Linear Graphs & Gradients

Grid with x from -2 to 4 and y from -1 to 8

On the grid, draw the graph of \(y = \frac{1}{2}x + 5\) for values of \(x\) from \(-2\) to 4 (3)

Mark scheme

Working

Answer

Mark

Notes

\(x\)	\(-2\)	\(-1\)	0	1	2	3	4
\(y\)	4	4.5	5	5.5	6	6.5	7

\(y = \frac{1}{2}x + 5\)
drawn

(Table of values / calculation of values)
M1 for at least 2 correct attempts to find points by substituting values of \(x\).
M1 ft for plotting at least 2 of their points (any points plotted from their table must be plotted correctly)
A1 for correct line between \(x = -2\) and \(x = 4\)
(No table of values)
M1 for at least 2 correct points with no more than 2 incorrect points
M1 for at least 2 correct points (and no incorrect points) plotted OR line segment of \(y = \frac{1}{2}x + 5\) drawn
A1 for correct line between \(x = -2\) and \(x = 4\)
(Use of \(y = mx + c\))
M1 for line drawn with gradient of 0.5 OR line drawn with a \(y\) intercept of 5
M1 for line drawn with gradient of 0.5 AND with a \(y\) intercept of 5
A1 for correct line between \(x = -2\) and \(x = 4\)
SC : B2 for the correct line from \(x = 0\) to \(x = 4\)