Graphs 6
1 mark · EasyThe equation of a cubic graph is .
Write down the value of when .
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0 (±0)
Common mistakes: Setting y = x^3 + 2x; Incorrect substitution
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Marking points
A1 · 1 mark · Correctly substitutes x = 0 and evaluates y = 0.
Worked solution
Substitute into the equation:
So .