Graphs 2
1 mark · EasyWhich of the following points lies on the line $y = -2x + 3$?
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Correct option: (-1, 5)
Common mistakes: Choosing (1,1): $-2\times1 + 3 = 1$ which is OK, but not $y=1$; Choosing (2,-1): $-2\times2+3 = -1$
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Marking points
B1 · 1 mark · Correct option selected: (-1, 5)
Worked solution
Check each point by substituting $x$ and $y$ into $y = -2x + 3$.
For $x = -1$: $y = -2(-1) + 3 = 2 + 3 = 5$. So $(-1,5)$ is on the line.