Graphs 2
2 marks · NormalCalculate the gradient of the straight line passing through the points (4, -5) and (10, 7).
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2 (±0)
Also accept: 2.0
Common mistakes: -2; -1
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Marking points
M1 · 1 mark · Attempts the correct gradient formula: (7 - (-5))/(10 - 4) or equivalent.
A1 · 1 mark · Arrives at the correct answer: 2.
Worked solution
Gradient = (change in y) / (change in x) = (7 - (-5)) / (10 - 4) = 12 / 6 = 2.