Graphs 1
2 marks · NormalA point B has y-coordinate 8 and lies on the line y = 3x + 2. Find the x-coordinate of B.
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2 (±0)
Common mistakes: Forgetting to subtract 2 before dividing
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Marking points
M1 · 1 mark · Equates 8 = 3x + 2 and rearranges to 3x = 6
A1 · 1 mark · Finds x = 2 (follow-through)
Worked solution