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Francis Coffey
Mathematics
23 February, 16:51
Is y=-4+3x^2 maximum of minimum
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Diet Coke
23 February, 17:01
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minimum
Step-by-step explanation:
Given a quadratic in standard form : y = ax² + bx + c : a ≠ 0
Whether the function is maximum or minimum can be determined by consideration of the sign of the coefficient a
• If a > 0 then minimum
• If a < 0 then maximum
For y = - 4 + 3x² the value of a is 3 > 0
Hence y = - 4 + 3x² is a minimum
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