Data task 98: A New Zealand Level 2 learner connects multiple ideas in an applied local or national context. For y = 2x + 5, find y when x = 8.
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Substitute the x-value.
Practice NCEA Level 2 Mathematics questions with answers and explanations.
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Substitute the x-value.
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Vertex form shows the maximum directly.
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Match equal powers of 2.
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Use aₙ=a₁r^(n−1).
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Apply the zero-product property.
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Use aₙ=a₁r^(n−1).
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Apply the zero-product property.
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Substitute the x-value.
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Vertex form shows the maximum directly.
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Match equal powers of 2.
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Add the equations to obtain 3x.
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Use A=P(1+r)^n.